Podcast
Questions and Answers
The Paris Agreement aims to limit global temperature increase to a specific range above pre-industrial levels. Which range reflects the agreement's goal?
The Paris Agreement aims to limit global temperature increase to a specific range above pre-industrial levels. Which range reflects the agreement's goal?
- 2.5°C to 3°C
- 1.5°C to 2°C (correct)
- Less than 1°C
- 3.5°C to 4°C
According to the Paris Agreement, what is the deadline for achieving net zero CO2 emissions globally to limit warming to 1.5°C?
According to the Paris Agreement, what is the deadline for achieving net zero CO2 emissions globally to limit warming to 1.5°C?
- 2040
- 2060
- 2070
- 2050 (correct)
The Paris Agreement acknowledges that not all countries need to reach net zero emissions at the same time. Which factor does NOT influence the target year set by individual countries?
The Paris Agreement acknowledges that not all countries need to reach net zero emissions at the same time. Which factor does NOT influence the target year set by individual countries?
- Capacity to act
- Geographic size of the country (correct)
- Responsibility for past GHG emissions
- Per-capita emissions
Hong Kong has set an intermedium goal related to carbon intensity. What does this goal entail?
Hong Kong has set an intermedium goal related to carbon intensity. What does this goal entail?
Which country has pledged to achieve carbon neutrality by 2070?
Which country has pledged to achieve carbon neutrality by 2070?
Which of the following human activities directly introduces new carbon dioxide into the atmosphere, disrupting the natural carbon cycle?
Which of the following human activities directly introduces new carbon dioxide into the atmosphere, disrupting the natural carbon cycle?
A region is experiencing increased levels of methane (CH4). Which of the following is the most likely primary source of these emissions?
A region is experiencing increased levels of methane (CH4). Which of the following is the most likely primary source of these emissions?
A power plant implements carbon capture and sequestration (CCS) technology. Which of the following steps is essential for the safe and effective long-term storage of captured CO2?
A power plant implements carbon capture and sequestration (CCS) technology. Which of the following steps is essential for the safe and effective long-term storage of captured CO2?
To reduce your personal contribution to greenhouse gas emissions, which combination of actions would be most effective?
To reduce your personal contribution to greenhouse gas emissions, which combination of actions would be most effective?
Which of the these options is NOT part of the carbon cycle?
Which of the these options is NOT part of the carbon cycle?
Flashcards
Paris Agreement Goals
Paris Agreement Goals
An international treaty aiming to limit global warming to below 2°C from pre-industrial levels, striving for 1.5°C.
Net Zero Emissions Target
Net Zero Emissions Target
A commitment by countries to achieve net zero CO2 emissions by specified years, with global targets set for 2050 and beyond.
Peak Emissions
Peak Emissions
The highest level of annual greenhouse gas emissions a country reaches, which must be reduced in future years.
Hong Kong's Climate Action Plan 2050
Hong Kong's Climate Action Plan 2050
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Climate Finance
Climate Finance
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Greenhouse Gas Emissions (GHG)
Greenhouse Gas Emissions (GHG)
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The Carbon Cycle
The Carbon Cycle
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Major Greenhouse Gases
Major Greenhouse Gases
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Energy Efficiency
Energy Efficiency
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Carbon Capture and Sequestration (CCS)
Carbon Capture and Sequestration (CCS)
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Study Notes
Greenhouse Gas Emissions (GHG)
- GHG emissions are increasing, along with global temperature.
- The carbon cycle dictates the amount of CO2 in the atmosphere.
- Breathing, plant/animal decomposition, and fires release CO2.
- Burning fossil fuels adds new CO2 to the atmosphere.
- Plants, wetlands, and the ocean absorb some CO2.
- Remaining CO2 acts like a blanket around Earth, contributing to global warming.
Components of GHG
- Three major greenhouse gases: carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
- CO2: Global Warming Potential (GWP) of 1, primary source is fossil fuel combustion (79.4%).
- CH4: GWP of 28, significant sources include fossil fuel systems, domestic livestock digestion, and landfills (11.5%).
- N2O: GWP of 265, primarily from agricultural fertilizers and fossil fuel combustion (6.2%).
2015 Paris Agreement
- Goal to limit global temperature increase to below 2°C above pre-industrial levels.
- Preferred goal is 1.5°C to avoid the worst effects of climate change.
- Effective November 2016, legally binding.
- Aims to drive climate finance.
2015 Paris Agreement Goals
- Net-zero CO2 emissions by 2050.
- Net-zero GHG emissions by 2065.
- Timeline to net-zero emissions includes global warming limits of 1.5°C and 2°C.
Government Goals
- Not all countries need to reach net-zero at the same time.
- Responsibility for past GHG emissions varies by country.
- Countries' capacity to act differs.
- Target years for net-zero vary (e.g., US/EU/UK/Japan by 2050, China/Saudi Arabia by 2060, and India by 2070).
Intermediate Goals
- China's intermediate goal is peaking emissions by 2030 and achieving carbon neutrality before 2060.
- Hong Kong aims for partial carbon neutrality before 2050, with 50% reduction in carbon intensity by 2035.
Hong Kong's Climate Action Plan 2050
- Hong Kong's economy depends heavily on the tertiary sector and lacks major energy-intensive industries.
- Electricity generation (66%), transportation (18%), and waste (7%) are the major sources of carbon emissions.
- Four decarbonization strategies are employed to meet the targets: Electricity Generation, Green Buildings, Green Transport, and Waste Reduction.
GHG by Country/Region
- Data shows varied GHG emission trends across different countries and regions.
- Includes emissions by country and per capita emissions, illustrating global disparities in emissions.
Greenhouse Gas Emissions by Sector, World
- Data showcases the development of GHG emissions by various sectors (e.g., transport, electricity, manufacturing).
- Shows increasing trends in GHG emissions from various sectors over the years.
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Description
Explore the key components of Greenhouse Gas Emissions (GHG), including carbon dioxide, methane and nitrous oxide. Understand the impact of burning fossil fuels on CO2 levels and the goals of the 2015 Paris Agreement to limit global temperature increase. Covers sources and global warming potentials.
