Podcast
Questions and Answers
Who is the largest corporate buyer of renewable power?
Who is the largest corporate buyer of renewable power?
Google believes that investing in renewable energy is also a __________ __________.
Google believes that investing in renewable energy is also a __________ __________.
Business Opportunity
Google has the set goal to power the company with what percentage of renewable energy?
Google has the set goal to power the company with what percentage of renewable energy?
100%
What percent of global sustainable energy comes from hydropower?
What percent of global sustainable energy comes from hydropower?
What percent of global sustainable energy comes from biomass?
What percent of global sustainable energy comes from biomass?
What is the term for energy contained in firewood and other plant matter?
What is the term for energy contained in firewood and other plant matter?
Biomass fuels are derived from what type of energy?
Biomass fuels are derived from what type of energy?
What are examples of traditional fuels?
What are examples of traditional fuels?
What main energy sources are not directly related to the sun?
What main energy sources are not directly related to the sun?
Fossil fuels take _____ out of coal, oil, and natural gas deposits.
Fossil fuels take _____ out of coal, oil, and natural gas deposits.
What is CO2 primarily used for in the context of biofuel production mentioned?
What is CO2 primarily used for in the context of biofuel production mentioned?
Where does the CO2 used in ethanol production ultimately come from?
Where does the CO2 used in ethanol production ultimately come from?
Why does burning ethanol ideally not increase the net amount of CO2 in the air?
Why does burning ethanol ideally not increase the net amount of CO2 in the air?
What ethical concerns are there with using corn and other food crops to make fuel?
What ethical concerns are there with using corn and other food crops to make fuel?
All of the following are advantages to Cellulosic ethanol except?
All of the following are advantages to Cellulosic ethanol except?
What are some disadvantages of cellulosic ethanol production?
What are some disadvantages of cellulosic ethanol production?
What organism are people turning to as a promising source for biofuel?
What organism are people turning to as a promising source for biofuel?
What are the advantages of using algae as a biofuel?
What are the advantages of using algae as a biofuel?
What solution did NASA come up with for fuel production using algae?
What solution did NASA come up with for fuel production using algae?
What is the first step of the Ocean-grown biofuel solution proposed by NASA?
What is the first step of the Ocean-grown biofuel solution proposed by NASA?
What is the second step of the Ocean-grown biofuel solution proposed by NASA?
What is the second step of the Ocean-grown biofuel solution proposed by NASA?
What are some advantages of biofuels?
What are some advantages of biofuels?
What are some disadvantages or concerns associated with biofuels?
What are some disadvantages or concerns associated with biofuels?
What renewable energy source uses blades that work like airplane wings to turn a generator?
What renewable energy source uses blades that work like airplane wings to turn a generator?
What causes the uneven heating of the Earth's surface?
What causes the uneven heating of the Earth's surface?
What natural phenomenon forms winds?
What natural phenomenon forms winds?
Approximately what percent of electricity comes from wind power in Denmark?
Approximately what percent of electricity comes from wind power in Denmark?
Which countries are among the largest manufacturers of wind turbines?
Which countries are among the largest manufacturers of wind turbines?
Why might different graphs comparing wind energy usage across countries show differing statistics or rankings?
Why might different graphs comparing wind energy usage across countries show differing statistics or rankings?
Which states utilize approximately two-thirds of the wind power generated in the US?
Which states utilize approximately two-thirds of the wind power generated in the US?
Clusters of wind turbines are called _____ _____
Clusters of wind turbines are called _____ _____
What is the fastest growing renewable energy sector?
What is the fastest growing renewable energy sector?
Wind produces about what percentage of global electricity needs?
Wind produces about what percentage of global electricity needs?
What are some advantages of wind power?
What are some advantages of wind power?
What is defined as capturing the energy of water moving under the force of gravity?
What is defined as capturing the energy of water moving under the force of gravity?
What are the two main types of technology used for hydropower?
What are the two main types of technology used for hydropower?
Why are run-of-river hydropower plants sometimes preferred?
Why are run-of-river hydropower plants sometimes preferred?
Hydropower accounts for approximately what percent of global demand for electricity?
Hydropower accounts for approximately what percent of global demand for electricity?
Hydropower accounts for approximately what percent of US demand for electricity?
Hydropower accounts for approximately what percent of US demand for electricity?
What countries are the largest producers of hydropower?
What countries are the largest producers of hydropower?
What two countries rely on hydropower for almost 100% of their electricity needs?
What two countries rely on hydropower for almost 100% of their electricity needs?
What structure significantly altered the seasonal flow of the Colorado River?
What structure significantly altered the seasonal flow of the Colorado River?
All of the following are advantages of hydropower except...?
All of the following are advantages of hydropower except...?
What was the name of the solar-powered plane that completed a record-setting journey from California to New York City?
What was the name of the solar-powered plane that completed a record-setting journey from California to New York City?
What solution allowed the Solar Impulse to fly at night?
What solution allowed the Solar Impulse to fly at night?
Approximately how long did each flight leg take for the Solar Impulse during its US journey?
Approximately how long did each flight leg take for the Solar Impulse during its US journey?
When did the Solar Impulse achieve its goal of flying from California to New York?
When did the Solar Impulse achieve its goal of flying from California to New York?
Zion National Park in Utah is heated almost entirely by what type of renewable energy?
Zion National Park in Utah is heated almost entirely by what type of renewable energy?
What are the two specialized silicon layers within a typical photovoltaic (PV) cell?
What are the two specialized silicon layers within a typical photovoltaic (PV) cell?
What is a Photovoltaic (PV) Cell?
What is a Photovoltaic (PV) Cell?
What is Concentrating Solar Power (CSP)?
What is Concentrating Solar Power (CSP)?
Where does solar power have the most potential for large-scale generation in the US?
Where does solar power have the most potential for large-scale generation in the US?
What are the World Solar Challenge Races?
What are the World Solar Challenge Races?
All of the following are disadvantages of Solar power except...?
All of the following are disadvantages of Solar power except...?
What is defined as heat energy generated and stored within the Earth, not originating from the Sun?
What is defined as heat energy generated and stored within the Earth, not originating from the Sun?
What is a dry-steam geothermal power plant?
What is a dry-steam geothermal power plant?
What are ground source heat pumps (GSHPs) primarily used for?
What are ground source heat pumps (GSHPs) primarily used for?
Where is the highest concentration of ground-source heat pumps found in the US?
Where is the highest concentration of ground-source heat pumps found in the US?
True or False: Geothermal energy disadvantages include that they are reliable and inexpensive, pollution free, and ground-source heat pumps use 30-70% less energy than conventional methods.
True or False: Geothermal energy disadvantages include that they are reliable and inexpensive, pollution free, and ground-source heat pumps use 30-70% less energy than conventional methods.
All of the following are disadvantages of Geothermal energy except...?
All of the following are disadvantages of Geothermal energy except...?
What forms of ocean movement can be harnessed for energy?
What forms of ocean movement can be harnessed for energy?
What structure in La Rance, France, uses tidal movement to spin turbines and generate electricity?
What structure in La Rance, France, uses tidal movement to spin turbines and generate electricity?
What technology generates 1.2 megawatts of renewable energy using tidal flows in Northern Ireland?
What technology generates 1.2 megawatts of renewable energy using tidal flows in Northern Ireland?
What are the advantages of ocean energy?
What are the advantages of ocean energy?
In energy economics, any cost of conserved energy (energy efficiency measure) that falls under the current energy price line is considered what?
In energy economics, any cost of conserved energy (energy efficiency measure) that falls under the current energy price line is considered what?
What term describes problems that are large, complex, and difficult to solve due to interconnected factors and incomplete knowledge?
What term describes problems that are large, complex, and difficult to solve due to interconnected factors and incomplete knowledge?
We have had more species now than ever before, but we are also __________ species __________.
We have had more species now than ever before, but we are also __________ species __________.
What is meant by variations in the genes among individuals of the same species?
What is meant by variations in the genes among individuals of the same species?
How is biodiversity measured within populations?
How is biodiversity measured within populations?
What does genetic diversity improve?
What does genetic diversity improve?
What type of breeding behavior maximizes genetic diversity?
What type of breeding behavior maximizes genetic diversity?
What type of breeding increases the chances of offspring inheriting harmful recessive genetic diseases?
What type of breeding increases the chances of offspring inheriting harmful recessive genetic diseases?
What is defined as the variety of species present in an area, including both the number of different species and their relative abundance?
What is defined as the variety of species present in an area, including both the number of different species and their relative abundance?
Organisms that are found only in specific, restricted geographic localities are called what?
Organisms that are found only in specific, restricted geographic localities are called what?
What is meant by the variety of habitats, niches, trophic levels, and community interactions within an ecosystem?
What is meant by the variety of habitats, niches, trophic levels, and community interactions within an ecosystem?
What does ecological diversity often include?
What does ecological diversity often include?
What are the three main levels at which biodiversity is measured?
What are the three main levels at which biodiversity is measured?
What taxonomic group accounts for the largest portion of known global biodiversity?
What taxonomic group accounts for the largest portion of known global biodiversity?
We know about __ million species of insects and estimate there are potentially __ million total species.
We know about __ million species of insects and estimate there are potentially __ million total species.
Which taxonomic group accounts for most described global biodiversity?
Which taxonomic group accounts for most described global biodiversity?
Lines showing equal levels of species richness (isoclines) on a map generally indicate that species richness increases as you move towards what?
Lines showing equal levels of species richness (isoclines) on a map generally indicate that species richness increases as you move towards what?
In what global regions are there dramatic increases in biodiversity?
In what global regions are there dramatic increases in biodiversity?
What are two general explanations for high tropical biodiversity?
What are two general explanations for high tropical biodiversity?
What are biodiversity hotspots?
What are biodiversity hotspots?
What are two different spatial scales at which diversity can be measured?
What are two different spatial scales at which diversity can be measured?
What is local diversity (or alpha diversity)?
What is local diversity (or alpha diversity)?
What is regional diversity (or gamma diversity)?
What is regional diversity (or gamma diversity)?
What is the MacArthur-Wilson Equilibrium Model for Island Biogeography?
What is the MacArthur-Wilson Equilibrium Model for Island Biogeography?
According to the MacArthur-Wilson model, what determines the equilibrium number of species on an island?
According to the MacArthur-Wilson model, what determines the equilibrium number of species on an island?
What does the MacArthur-Wilson Equilibrium Model for Island Biogeography generally predict about island biodiversity?
What does the MacArthur-Wilson Equilibrium Model for Island Biogeography generally predict about island biodiversity?
More than 99% of all species that have ever lived on Earth have gone __________.
More than 99% of all species that have ever lived on Earth have gone __________.
Why is extinction considered a 'normal' process in the long term?
Why is extinction considered a 'normal' process in the long term?
What facilitated the overhunting that led to the extinction of passenger pigeons?
What facilitated the overhunting that led to the extinction of passenger pigeons?
In what year did the last passenger pigeon, known as 'Martha', die in captivity?
In what year did the last passenger pigeon, known as 'Martha', die in captivity?
Google believes that investing in renewable energy is also a _____ _____.
Google believes that investing in renewable energy is also a _____ _____.
What term describes energy contained in firewood and other plant matter?
What term describes energy contained in firewood and other plant matter?
Fossil fuels take what element out of long-term storage in coal, oil, and natural gas deposits?
Fossil fuels take what element out of long-term storage in coal, oil, and natural gas deposits?
In the context of biofuel production (like ethanol), what is CO2 used for?
In the context of biofuel production (like ethanol), what is CO2 used for?
Where does the CO2 absorbed by plants used for ethanol production come from?
Where does the CO2 absorbed by plants used for ethanol production come from?
Why is burning ethanol considered potentially carbon-neutral in a simplified view?
Why is burning ethanol considered potentially carbon-neutral in a simplified view?
Difficulties with large-scale production, lack of subsidies compared to corn ethanol, and expensive processing enzymes are considered what for cellulosic ethanol?
Difficulties with large-scale production, lack of subsidies compared to corn ethanol, and expensive processing enzymes are considered what for cellulosic ethanol?
What type of organism are people exploring as a potentially highly efficient biofuel source?
What type of organism are people exploring as a potentially highly efficient biofuel source?
What are advantages of algae as a biofuel source?
What are advantages of algae as a biofuel source?
What innovative biofuel solution involving ocean-grown algae did NASA explore?
What innovative biofuel solution involving ocean-grown algae did NASA explore?
What is the first step of the proposed Ocean-grown biofuel solution by NASA?
What is the first step of the proposed Ocean-grown biofuel solution by NASA?
What is the second step of the proposed Ocean-grown biofuel solution by NASA?
What is the second step of the proposed Ocean-grown biofuel solution by NASA?
What are some potential advantages of biofuels?
What are some potential advantages of biofuels?
What are some potential disadvantages or concerns related to biofuels?
What are some potential disadvantages or concerns related to biofuels?
What energy source uses blades that function like airplane wings to turn a generator?
What energy source uses blades that function like airplane wings to turn a generator?
What atmospheric phenomenon, driven by uneven heating, forms winds?
What atmospheric phenomenon, driven by uneven heating, forms winds?
In Denmark, approximately what percent of electricity comes from wind power?
In Denmark, approximately what percent of electricity comes from wind power?
Why might US wind energy statistics differ depending on whether you look at total production versus percentage of national energy use?
Why might US wind energy statistics differ depending on whether you look at total production versus percentage of national energy use?
Which states account for a significant portion (around 2/3rds historically) of wind power generation in the US?
Which states account for a significant portion (around 2/3rds historically) of wind power generation in the US?
Clusters of wind turbines are called what?
Clusters of wind turbines are called what?
What is the fastest growing renewable energy sector globally?
What is the fastest growing renewable energy sector globally?
Wind power produces approximately what percentage of global electricity needs?
Wind power produces approximately what percentage of global electricity needs?
What term describes capturing the energy of water moving under the force of gravity?
What term describes capturing the energy of water moving under the force of gravity?
Why are run-of-river hydropower plants often preferred?
Why are run-of-river hydropower plants often preferred?
Hydropower accounts for approximately what percent of global electricity demand?
Hydropower accounts for approximately what percent of global electricity demand?
Hydropower accounts for approximately what percent of US electricity demand?
Hydropower accounts for approximately what percent of US electricity demand?
What structure significantly altered the natural seasonal flow of the Colorado River?
What structure significantly altered the natural seasonal flow of the Colorado River?
What technological solution allowed the Solar Impulse to fly at night?
What technological solution allowed the Solar Impulse to fly at night?
Approximately how long did the individual flight legs take for the Solar Impulse during its cross-US journey?
Approximately how long did the individual flight legs take for the Solar Impulse during its cross-US journey?
Zion National Park in Utah utilizes what type of energy to heat its visitor center and other facilities almost entirely?
Zion National Park in Utah utilizes what type of energy to heat its visitor center and other facilities almost entirely?
What are the two specially treated silicon layers typically found in a photovoltaic (PV) cell?
What are the two specially treated silicon layers typically found in a photovoltaic (PV) cell?
What is the primary function of a photovoltaic (PV) cell?
What is the primary function of a photovoltaic (PV) cell?
Where in the US does solar power have the greatest potential due to high solar irradiance?
Where in the US does solar power have the greatest potential due to high solar irradiance?
What term describes heat energy generated and stored within the Earth, not originating from the Sun?
What term describes heat energy generated and stored within the Earth, not originating from the Sun?
How does a dry-steam geothermal power plant generate electricity?
How does a dry-steam geothermal power plant generate electricity?
In which region of the US are most large-scale geothermal power plants located?
In which region of the US are most large-scale geothermal power plants located?
All of the following are potential disadvantages of Geothermal energy except...?
All of the following are potential disadvantages of Geothermal energy except...?
What category of renewable energy utilizes the kinetic energy of moving water in tides and waves?
What category of renewable energy utilizes the kinetic energy of moving water in tides and waves?
What type of structure, like the one at La Rance, France, uses gates and turbines to generate electricity as water moves in and out of an estuary or bay with the tides?
What type of structure, like the one at La Rance, France, uses gates and turbines to generate electricity as water moves in and out of an estuary or bay with the tides?
What device, exemplified by one in Northern Ireland, generates renewable energy using underwater currents, particularly tidal streams?
What device, exemplified by one in Northern Ireland, generates renewable energy using underwater currents, particularly tidal streams?
What are the primary advantages of ocean energy (tidal and wave)?
What are the primary advantages of ocean energy (tidal and wave)?
What are the main disadvantages or challenges of ocean energy?
What are the main disadvantages or challenges of ocean energy?
In energy economics, any cost of conserved energy (energy efficiency measure) that falls below the price line of the current energy source is considered what?
In energy economics, any cost of conserved energy (energy efficiency measure) that falls below the price line of the current energy source is considered what?
What term describes problems that are large, complex, and difficult to solve due to incomplete, contradictory, or changing requirements, often involving many stakeholders with different values?
What term describes problems that are large, complex, and difficult to solve due to incomplete, contradictory, or changing requirements, often involving many stakeholders with different values?
Earth has more species diversity now than ever before in its history, but we are also _____ species _____ than historical background rates.
Earth has more species diversity now than ever before in its history, but we are also _____ species _____ than historical background rates.
What term describes the variations in genes among individuals of the same species?
What term describes the variations in genes among individuals of the same species?
Within populations, how is biodiversity often measured at its most fundamental level?
Within populations, how is biodiversity often measured at its most fundamental level?
What aspect of population survival does genetic diversity improve, especially in changing environments?
What aspect of population survival does genetic diversity improve, especially in changing environments?
What reproductive strategy tends to maximize genetic diversity within a population?
What reproductive strategy tends to maximize genetic diversity within a population?
What reproductive strategy increases the chances of offspring inheriting harmful recessive genetic diseases like hemophilia or cystic fibrosis?
What reproductive strategy increases the chances of offspring inheriting harmful recessive genetic diseases like hemophilia or cystic fibrosis?
What term is defined as the variety of species present in an area, encompassing both the number of different species and their relative abundance?
What term is defined as the variety of species present in an area, encompassing both the number of different species and their relative abundance?
What are organisms called that are found only in specific, often geographically isolated, localities?
What are organisms called that are found only in specific, often geographically isolated, localities?
What term refers to the variety of habitats, ecological niches, trophic levels, and community interactions within an ecosystem?
What term refers to the variety of habitats, ecological niches, trophic levels, and community interactions within an ecosystem?
What aspect of a habitat contributes significantly to ecological diversity?
What aspect of a habitat contributes significantly to ecological diversity?
Which major taxonomic group of organisms accounts for the largest portion of known global biodiversity?
Which major taxonomic group of organisms accounts for the largest portion of known global biodiversity?
We know about approximately _____ million species of insects, and scientists estimate there might be _____ million species in total.
We know about approximately _____ million species of insects, and scientists estimate there might be _____ million species in total.
Which taxonomic group accounts for the majority of described species and estimated total global biodiversity?
Which taxonomic group accounts for the majority of described species and estimated total global biodiversity?
Maps showing lines of equal species richness (isoclines) generally indicate that species richness increases as you move towards what geographical latitude?
Maps showing lines of equal species richness (isoclines) generally indicate that species richness increases as you move towards what geographical latitude?
In what geographical areas are the most dramatic increases in biodiversity typically observed?
In what geographical areas are the most dramatic increases in biodiversity typically observed?
What are two main hypotheses attempting to explain high tropical biodiversity?
What are two main hypotheses attempting to explain high tropical biodiversity?
Biodiversity can be measured at different spatial scales. What are two common scales mentioned?
Biodiversity can be measured at different spatial scales. What are two common scales mentioned?
What ecological model compares immigration and extinction rates as a function of habitat patch size and isolation to predict species richness?
What ecological model compares immigration and extinction rates as a function of habitat patch size and isolation to predict species richness?
According to the MacArthur-Wilson model, what determines the number of species eventually found on an island?
According to the MacArthur-Wilson model, what determines the number of species eventually found on an island?
What does the MacArthur-Wilson Equilibrium Model for Island Biogeography predict regarding island size and distance from the mainland?
What does the MacArthur-Wilson Equilibrium Model for Island Biogeography predict regarding island size and distance from the mainland?
It is estimated that more than 99% of all species that have ever lived on Earth have gone _____
It is estimated that more than 99% of all species that have ever lived on Earth have gone _____
Why is extinction considered a 'normal' or natural process over geological timescales?
Why is extinction considered a 'normal' or natural process over geological timescales?
What factor, facilitated by the expansion of railroads in the 1850s, led to the extinction of the passenger pigeon?
What factor, facilitated by the expansion of railroads in the 1850s, led to the extinction of the passenger pigeon?
In what year did 'Martha', the last known passenger pigeon, die in captivity at the Cincinnati Zoo?
In what year did 'Martha', the last known passenger pigeon, die in captivity at the Cincinnati Zoo?
Fossil fuels take what out of coal, oil, and natural gas deposits?
Fossil fuels take what out of coal, oil, and natural gas deposits?
What is CO2 used for in the context of ethanol production?
What is CO2 used for in the context of ethanol production?
Where does the CO2 used by plants to make ethanol ultimately come from?
Where does the CO2 used by plants to make ethanol ultimately come from?
What are some disadvantages of cellulosic ethanol?
What are some disadvantages of cellulosic ethanol?
What organism are people turning to as a potential source of biofuel?
What organism are people turning to as a potential source of biofuel?
What are advantages of algae as a biofuel?
What are advantages of algae as a biofuel?
What solution did NASA come up with for fuel production involving algae?
What solution did NASA come up with for fuel production involving algae?
What are some potential disadvantages or concerns regarding biofuels?
What are some potential disadvantages or concerns regarding biofuels?
What energy source uses a blade that works like an airplane wing and turns a generator?
What energy source uses a blade that works like an airplane wing and turns a generator?
What causes uneven heating of the Earth?
What causes uneven heating of the Earth?
What forms winds?
What forms winds?
What percent of electricity comes from wind power in Denmark?
What percent of electricity comes from wind power in Denmark?
Which countries are some of the largest manufacturers of wind turbines?
Which countries are some of the largest manufacturers of wind turbines?
Why might different graphs show differing statistics about wind power production versus consumption percentages?
Why might different graphs show differing statistics about wind power production versus consumption percentages?
Which states generate about two-thirds of the wind power in the US?
Which states generate about two-thirds of the wind power in the US?
Hydropower accounts for what percent of global demand for electricity?
Hydropower accounts for what percent of global demand for electricity?
Hydropower accounts for what percent of US demand for electricity?
Hydropower accounts for what percent of US demand for electricity?
What two countries use hydropower for almost 100% of their electricity needs?
What two countries use hydropower for almost 100% of their electricity needs?
What major infrastructure project altered the seasonal flow of the Colorado river?
What major infrastructure project altered the seasonal flow of the Colorado river?
What is the solar-powered plane that finished a record-setting journey from California to New York City?
What is the solar-powered plane that finished a record-setting journey from California to New York City?
What solution was implemented for the Solar Impulse so it could fly at night?
What solution was implemented for the Solar Impulse so it could fly at night?
How long did the flight legs typically take for the Solar Impulse cross-country journey?
How long did the flight legs typically take for the Solar Impulse cross-country journey?
When did the Solar Impulse reach its goal of flying from California to NY?
When did the Solar Impulse reach its goal of flying from California to NY?
Zion National Park in Utah utilizes what type of energy extensively for heating?
Zion National Park in Utah utilizes what type of energy extensively for heating?
What are the two specialized silicon layers in a typical photovoltaic cell?
What are the two specialized silicon layers in a typical photovoltaic cell?
What is a Photovoltaic (PV) Cell primarily used for?
What is a Photovoltaic (PV) Cell primarily used for?
Where does solar power have the most potential in the US?
Where does solar power have the most potential in the US?
What is defined as heat energy generated and stored in Earth, not originating from the Sun?
What is defined as heat energy generated and stored in Earth, not originating from the Sun?
Where is the highest concentration of ground-source heat pump installations in the US?
Where is the highest concentration of ground-source heat pump installations in the US?
What type of energy harnesses the kinetic energy of tides and waves?
What type of energy harnesses the kinetic energy of tides and waves?
What structure spins turbines and generates electricity as water moves in and out of the bay in La Rance, France?
What structure spins turbines and generates electricity as water moves in and out of the bay in La Rance, France?
What generates 1.2 megawatts of renewable energy in Strangford Lough, Northern Ireland?
What generates 1.2 megawatts of renewable energy in Strangford Lough, Northern Ireland?
In energy economics, any cost of conserved energy under the current energy price line is considered?
In energy economics, any cost of conserved energy under the current energy price line is considered?
What term describes problems that are large, complex, and difficult to solve due to interconnectedness and multiple stakeholders?
What term describes problems that are large, complex, and difficult to solve due to interconnectedness and multiple stakeholders?
We have had more species now than ever before, but we are also _____ species _____.
We have had more species now than ever before, but we are also _____ species _____.
What type of breeding maximizes genetic diversity?
What type of breeding maximizes genetic diversity?
What type of breeding increases the chances of genetic diseases like hemophilia, cystic fibrosis, etc.?
What type of breeding increases the chances of genetic diseases like hemophilia, cystic fibrosis, etc.?
Organisms that are found only in specific localities are called?
Organisms that are found only in specific localities are called?
What is meant by the variety of habitats, niches, trophic levels, and community interactions?
What is meant by the variety of habitats, niches, trophic levels, and community interactions?
What does ecological diversity include?
What does ecological diversity include?
What group accounts for most described global biodiversity?
What group accounts for most described global biodiversity?
We know about _____ million species of insects and estimate there are _____ million total.
We know about _____ million species of insects and estimate there are _____ million total.
Which taxonomic group accounts for most global biodiversity?
Which taxonomic group accounts for most global biodiversity?
Isoclines on global biodiversity maps indicate species richness generally increases towards what geographical feature?
Isoclines on global biodiversity maps indicate species richness generally increases towards what geographical feature?
There are dramatic increases in biodiversity in what global regions?
There are dramatic increases in biodiversity in what global regions?
Diversity can be measured at a variety of spatial levels including?
Diversity can be measured at a variety of spatial levels including?
According to island biogeography theory, what determines the number of species on an island?
According to island biogeography theory, what determines the number of species on an island?
The MacArthur-Wilson Equilibrium Model for Island Biogeography predicts...
The MacArthur-Wilson Equilibrium Model for Island Biogeography predicts...
More than 99% of all species that have lived on Earth have gone _____.
More than 99% of all species that have lived on Earth have gone _____.
Why is extinction considered a 'normal' process over geological time?
Why is extinction considered a 'normal' process over geological time?
What major factor led to the extinction of passenger pigeons?
What major factor led to the extinction of passenger pigeons?
The last passenger pigeon, named 'Martha', died in captivity in what year?
The last passenger pigeon, named 'Martha', died in captivity in what year?
Flashcards
Largest corporate buyer of renewable power?
Largest corporate buyer of renewable power?
Google.
Renewable energy investment benefits?
Renewable energy investment benefits?
Business Opportunity.
Google's renewable energy goal?
Google's renewable energy goal?
100%.
Global sustainable energy from hydropower?
Global sustainable energy from hydropower?
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Global sustainable energy from biomass?
Global sustainable energy from biomass?
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Bioenergy/Biomass energy
Bioenergy/Biomass energy
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Biomass fuels are derived from what energy?
Biomass fuels are derived from what energy?
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Examples of traditional fuels?
Examples of traditional fuels?
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Main energy sources not from the sun?
Main energy sources not from the sun?
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Fossil fuels extract what?
Fossil fuels extract what?
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What is CO2 used for?
What is CO2 used for?
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Where does CO2 come from?
Where does CO2 come from?
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Why no net CO2 increase from burning ethanol?
Why no net CO2 increase from burning ethanol?
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Ethical concerns of using food for fuel?
Ethical concerns of using food for fuel?
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All are advantages of Cellulosic ethanol except?
All are advantages of Cellulosic ethanol except?
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Cellulosic ethanol problems?
Cellulosic ethanol problems?
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Biofuel alternative?
Biofuel alternative?
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Advantages of algae as biofuel?
Advantages of algae as biofuel?
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NASA's fuel solution?
NASA's fuel solution?
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Ocean biofuel NASA step 1?
Ocean biofuel NASA step 1?
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Ocean biofuel NASA step 2?
Ocean biofuel NASA step 2?
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Ocean biofuel NASA step 3?
Ocean biofuel NASA step 3?
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Ocean biofuel NASA step 4?
Ocean biofuel NASA step 4?
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Biofuel advantages?
Biofuel advantages?
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Biofuel disadvantages?
Biofuel disadvantages?
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Airplane wing spinning a generator?
Airplane wing spinning a generator?
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Uneven heating of Earth is caused by?
Uneven heating of Earth is caused by?
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Winds are formed by?
Winds are formed by?
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Denmark electricity from wind?
Denmark electricity from wind?
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Wind turbine manufacturers?
Wind turbine manufacturers?
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Why do the two graphs show differing statistics?
Why do the two graphs show differing statistics?
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States using 2/3rds of wind power in the US?
States using 2/3rds of wind power in the US?
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Clusters of Turbines are called?
Clusters of Turbines are called?
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Fastest growing renewable sector?
Fastest growing renewable sector?
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Wind produces about what percentage of global electricity needs?
Wind produces about what percentage of global electricity needs?
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Advantages of wind power?
Advantages of wind power?
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Disadvantages of wind power?
Disadvantages of wind power?
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Hydropower is defined as?
Hydropower is defined as?
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Two types of hydropower tech?
Two types of hydropower tech?
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Why use run-of-river plants?
Why use run-of-river plants?
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Hydropower accounts for what percent of global demand of electricity?
Hydropower accounts for what percent of global demand of electricity?
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Hydropower accounts for what percent of US demand of electricity?
Hydropower accounts for what percent of US demand of electricity?
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Largest producers of hydropower?
Largest producers of hydropower?
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Hydropower for almost 100%?
Hydropower for almost 100%?
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What altered the flow of the Colorado river?
What altered the flow of the Colorado river?
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All are advantages of hydropower except?
All are advantages of hydropower except?
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All are disadvantages of hydropower except...?
All are disadvantages of hydropower except...?
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Solar-powered plane to NYC?
Solar-powered plane to NYC?
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Solar Impulse Fly at night?
Solar Impulse Fly at night?
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How long did Flight legs take for the Solar Impulse?
How long did Flight legs take for the Solar Impulse?
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Study Notes
- Google is the largest corporate buyer of renewable power, viewing it as a business opportunity.
- The company aims to power itself with 100% renewable energy.
Global Sustainable Energy
- Hydropower accounts for 57% of global sustainable energy.
- Biomass accounts for 23% of global sustainable energy.
Bioenergy/Biomass Energy
- This refers to the energy contained in firewood and other plant matter.
- Biomass fuels harness solar energy.
- Traditional fuels include wood, charcoal, and animal dung.
- Nuclear and geothermal energy sources aren't directly sun-related.
Fossil Fuels
- These extract carbon from coal, oil, and natural gas deposits.
CO2 and Ethanol
- CO2 from the air is used to make ethanol.
- Burning ethanol doesn't increase atmospheric CO2, as the carbon is recycled from the air.
Ethical concerns with corn and other food for fuel
- Making fuel from food carries ethical concerns due to increased scarcity and supply/demand issues.
Cellulosic Ethanol
- Advantages include being native, needing little fertilizer or water, growing on marginal land, and being perennial.
- Disadvantages include not being produced large-scale, lacking subsidies, and having expensive enzymes used in processing.
Algae as Biofuel
- People are exploring algae as a biofuel source.
- Advantages include quick growth and photosynthetic processes that focus on oil production.
NASA's Ocean-Grown Biofuel Solution
- Fill semi-permeable bags with wastewater and freshwater algae.
- Bags allow freshwater to flow out while preventing saltwater from entering.
- Algae feed and grow fatty, lipid cells.
- Fatty cells are rich in oil and can be used as fuel.
Biofuel Advantages
- Biofuels are carbon neutral, have lower NO and SO emissions, are abundant, widely distributed, and produced domestically.
Biofuel Disadvantages
- Carbon neutrality is questioned.
- There are costs linked to transport, processing, fertilizers, and water.
- The net gain is questioned.
Wind Energy
- This uses blades that function like airplane wings to turn a generator.
- Uneven heating of the Earth is caused by geography and topography.
- High-low pressure systems form winds.
- Denmark gets 60% of its electricity from wind power.
- China and Denmark are major wind turbine manufacturers.
US Wind Power
- Texas, California, Iowa, Minnesota, and Washington use 2/3 of wind power in the US.
- Clusters of turbines are called wind farms.
- Wind power is the fastest-growing renewable sector.
- Wind produces about 7% of global electricity needs.
Wind Power Advantages
- No fuel is needed.
- No pollutants are released.
- Wind is a domestic energy source.
- Wind is not subject to disruptions of single energy plants.
Wind Power Disadvantages
- Wind can cause bird and bat deaths.
- Turbines have aesthetic impacts.
- Wind is intermittent.
- Windy areas are not usually near urban areas.
Hydropower
- This captures energy from water moving under gravity.
- Two types of technology in use are impoundment plants (dams) and run-of-river plants.
- Run-of-river plants are less costly, ecologically disruptive, and dependent on sustained flow.
Hydropower Use
- Hydropower accounts for 16% of global electricity demand.
- Hydropower accounts for 6% of US electricity demand.
- China, Brazil, and Canada are the largest producers of hydropower.
- Norway and Paraguay use hydropower for almost 100% of their electricity needs.
Glen Canyon Dam
- Glen Canyon Dam altered the seasonal flow of the Colorado River.
Hydropower Advantages
- Fossil fuels are not needed.
- No pollutants are emitted.
- Energy is cheap, and power output can be matched to demand.
- Dams are used for flood control and water retention.
Hydropower Disadvantages
- There are negative effects on environments, human communities, and ecosystems (flow changes).
- Peak flows are no longer seasonal.
- Sediment accumulation, transport, temperature, and oxygen are all changed.
Solar Impulse
- The Solar Impulse is a solar-powered plane that completed a record-setting journey from California to New York City.
- Solar energy was stored in batteries for night flying.
- Flight legs took approximately 20 hours.
- The Solar Impulse reached its goal on July 6, 2013.
Solar Energy Application
- Zion National Park in Utah is heated almost entirely by solar energy.
Photovoltaic Cells
- The two layers of a photovoltaic cell include a silicon layer with phosphorus and a silicon layer with boron.
- Photovoltaic cells store or create solar energy.
- Concentrating solar power (CSP) concentrates solar energy onto water pipes, producing steam to turn generator turbines.
- The southwestern states have the most solar power potential in the US.
World Solar Challenge Races
- These are competitive races of electric vehicles powered by solar energy obtained from solar panels on the car surfaces.
Solar Power Advantages
- Solar power is free and renewable.
- No emissions are produced.
- Solar power increases job opportunities.
- Roof installations/space options exist.
Solar Power Disadvantages
- There are daylight requirements, geographical limitations and hazardous materials are used in construction.
- Solar has a high cost of electricity compared to coal.
- Solar has high start up costs.
Geothermal Energy
- This is heat energy generated and stored in Earth, not originating from the Sun.
- Geothermal electricity involves dry-steam power plants where underground hot water and steam generate electricity.
- Ground source heat pumps are used for heating and cooling.
- Most ground-source heat pumps in the US are in western states.
Geothermal Energy Advantages
- Geothermal energy is reliable, inexpensive, and pollution-free.
- Ground-source heat pumps use 30-70% less energy than conventional methods.
Geothermal Energy Disadvantages
- Geothermal can cause ecosystem disturbance.
- There are concerns about replenishment rates of ground heat.
- Geothermal has high start up costs.
- Geothermal has geographic limitations.
Ocean Energy
- This uses kinetic energy, tides, and waves.
- The tidal barrage in La Rance, France spins turbines and generates electricity as water moves in and out of the bay.
- A tidal turbine generates 1.2 megawatts of renewable energy in Northern Ireland.
Ocean Energy Advantages
- Ocean Energy is renewable and pollution free.
- Ocean Energy production is not very costly.
Ocean Energy Disadvantages
- Ocean Energy can cause ecosystem disturbance.
- Tidal barrage systems need high amplitude.
- Ocean Energy has geographic limitations.
Energy Conservation
- Any cost of conserved energy under the current energy price line is considered cost-effective.
Wicked Problems
- Wicked problems are large and complex problems.
Biodiversity Loss
- Species are currently being lost faster than ever before.
Genetic Diversity
- This refers to variations in genes among individuals of the same species.
- Genetic diversity improves the survival of populations in changing environments.
- Outbreeding maximizes genetic diversity.
- Inbreeding increases the chances of genetic diseases.
Species Diversity
- This refers to the variety of species present in an area, including the number of different species and their relative abundance.
- Endemic species are only found in specific localities.
Ecological Diversity
- This refers to the variety of habitats, niches, trophic levels, and community interactions.
- Ecological diversity includes the structural complexity of a habitat.
Measurement of Biodiversity
- Biodiversity is measured by genetic diversity, species diversity, and ecological diversity.
- Insects account for most global biodiversity.
- 1 million species of insects are known, and an estimated 5 million total exist.
Biodiversity Trends
- Isoclines indicate species richness increases towards the equator.
- There are dramatic increases in biodiversity in tropical areas.
- High tropical biodiversity occurs because biodiversity increases without limit over time.
Biodiversity Hotspots
- Biodiversity hotspots are areas with high endemism and diversity.
Spatial Levels of Diversity
- Diversity can be measured at local diversity and regional diversity spatial levels.
- Local diversity is the number of species in a small area of homogeneous habitat.
- Regional diversity is the total number of species observed in all habitats within a barrier-free geographic area.
MacArthur-Wilson Equilibrium Model for Island Biogeography
- This model compares immigration and extinction rates as a function of patch size and patch isolation.
- The number of species on an island depends on the balance between immigration and extinction rates.
- Large islands near a mainland will have higher biodiversity than small islands farther away.
Extinction
- More than 99% of all species that have lived on Earth are extinct.
- Extinction is typically "normal" because of evolution.
- Passenger pigeons went extinct due to easier access to hunting via railroads in the 1850s.
- The last passenger pigeon "Martha" died in captivity in 1914.
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