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Questions and Answers
What are some natural sources of carbon dioxide in the atmosphere?
Organisms decaying or respiring, carbonate rocks being weathered, volcanoes erupting, and forest fires occurring.
How do human activities contribute to the increase of carbon dioxide in the atmosphere?
Burning fossil fuels and burning forests for agriculture and mining.
What happens during combustion or burning of fossil fuels?
Carbon from fossil fuels combines with oxygen in the air to form carbon dioxide and water vapor.
What are two ways societies can work together to slow climate change?
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What are the effects of carbon dioxide and water vapor in the atmosphere?
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What is the primary mechanism by which carbon dioxide and water vapor contribute to global warming?
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What is the ultimate consequence of human activities, such as burning fossil fuels and deforestation, on the environment?
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What is the significance of the data being recorded by scientists regarding global temperatures and greenhouse gas emissions?
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What is the underlying principle behind the effectiveness of using cleaner renewable energies in reducing greenhouse gas emissions?
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What is the personal responsibility implied by the question 'Is there anything you can do to conserve natural resources and reduce the amount of greenhouse gases you emit?'
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Study Notes
Global Warming
- The Earth's average surface temperature has risen about 2℉ since the late 19th century, with most of the warming occurring in the past 35 years.
- 2023 is the warmest year on record since global records began in 1850.
The Greenhouse Effect
- The greenhouse effect is a natural process that warms the Earth's surface by trapping heat from the sun in the atmosphere.
- Human-emitted greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, contribute to global warming.
Climate Change
- Climate change refers to the long-term alteration of temperature and typical weather patterns in a specific area.
- Human activities that release greenhouse gases into the atmosphere drive climate change.
Consequences of Climate Change
- Rising sea levels lead to coastal flooding and erosion.
- Increased extreme weather events, such as hurricanes, droughts, and heatwaves.
- Disruption of ecosystems and threats to biodiversity.
Oceans and Climate Change
- Oceans absorb 90% of the world's heat trapped in the climate system by greenhouse gases.
- Ocean temperatures have risen at an average rate of 0.14℉ per decade from 1901 to 2020.
- The amount of heat absorbed into the oceans is equivalent to about five atomic bombs of energy every second.
Carbon Dioxide
- Carbon dioxide is the most concerning greenhouse gas.
- Natural sources of carbon dioxide include decaying organisms, weathered carbonate rocks, volcanic eruptions, and forest fires.
- Human activities, such as burning fossil fuels and forests, release and store carbon dioxide in the atmosphere.
Combating Climate Change
- Societies can work together to slow climate change by decreasing their dependence on fossil fuels and using cleaner renewable energies.
Global Warming
- The Earth's average surface temperature has risen about 2℉ since the late 19th century, with most of the warming occurring in the past 35 years.
- 2023 is the warmest year on record since global records began in 1850.
The Greenhouse Effect
- The greenhouse effect is a natural process that warms the Earth's surface by trapping heat from the sun in the atmosphere.
- Human-emitted greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, contribute to global warming.
Climate Change
- Climate change refers to the long-term alteration of temperature and typical weather patterns in a specific area.
- Human activities that release greenhouse gases into the atmosphere drive climate change.
Consequences of Climate Change
- Rising sea levels lead to coastal flooding and erosion.
- Increased extreme weather events, such as hurricanes, droughts, and heatwaves.
- Disruption of ecosystems and threats to biodiversity.
Oceans and Climate Change
- Oceans absorb 90% of the world's heat trapped in the climate system by greenhouse gases.
- Ocean temperatures have risen at an average rate of 0.14℉ per decade from 1901 to 2020.
- The amount of heat absorbed into the oceans is equivalent to about five atomic bombs of energy every second.
Carbon Dioxide
- Carbon dioxide is the most concerning greenhouse gas.
- Natural sources of carbon dioxide include decaying organisms, weathered carbonate rocks, volcanic eruptions, and forest fires.
- Human activities, such as burning fossil fuels and forests, release and store carbon dioxide in the atmosphere.
Combating Climate Change
- Societies can work together to slow climate change by decreasing their dependence on fossil fuels and using cleaner renewable energies.
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Description
Learn about the rising average land and sea temperatures, the causes of global warming, and the impact of human activities on the environment.
