Podcast
Questions and Answers
What recent changes to Earth's climate are primarily driven by human emissions?
What recent changes to Earth's climate are primarily driven by human emissions?
- Increased ocean salinity
- Shrinking glaciers and ice sheets (correct)
- Stabilized weather patterns
- Decreased volcanic activity
What is a projected outcome if greenhouse gas emissions continue to rise?
What is a projected outcome if greenhouse gas emissions continue to rise?
- Absence of droughts and wildfires
- Permanent restoration of ice sheets
- Increased heatwaves and climate extremes (correct)
- Complete stabilization of global temperatures
According to the Intergovernmental Panel on Climate Change, what is true about the current changes in climate?
According to the Intergovernmental Panel on Climate Change, what is true about the current changes in climate?
- They have been well predicted and are manageable
- They are unprecedented and some are irreversible (correct)
- They are temporary and reversible within a year
- They are primarily caused by natural phenomena
What is the expected rise in global average temperature in the coming decades?
What is the expected rise in global average temperature in the coming decades?
How do near-term mitigation actions influence the risks associated with climate change?
How do near-term mitigation actions influence the risks associated with climate change?
What is the implication of delaying global action against climate change?
What is the implication of delaying global action against climate change?
What major factor determines the severity of future climate change effects?
What major factor determines the severity of future climate change effects?
Which of these statements is true regarding the connection between human activity and climate change?
Which of these statements is true regarding the connection between human activity and climate change?
How have rising global temperatures altered natural environmental conditions according to current observations?
How have rising global temperatures altered natural environmental conditions according to current observations?
What types of extreme weather events are accelerating faster than previously assessed?
What types of extreme weather events are accelerating faster than previously assessed?
What is the relationship between human greenhouse gas emissions and the global temperature increase since the late 19th century?
What is the relationship between human greenhouse gas emissions and the global temperature increase since the late 19th century?
What action can potentially mitigate the worst effects of climate change according to the provided information?
What action can potentially mitigate the worst effects of climate change according to the provided information?
According to scientists, what long-term impacts are associated with current climate changes?
According to scientists, what long-term impacts are associated with current climate changes?
What is the likely outcome if human activities continue on the same path regarding climate change?
What is the likely outcome if human activities continue on the same path regarding climate change?
How does the IPCC assess the confidence in the predictions related to climate change?
How does the IPCC assess the confidence in the predictions related to climate change?
What are the broad implications of failing to take action against climate change according to the text?
What are the broad implications of failing to take action against climate change according to the text?
Flashcards
Global Climate Change
Global Climate Change
Widespread environmental changes caused by human-produced greenhouse gases.
Greenhouse Gases
Greenhouse Gases
Gases in Earth's atmosphere that trap heat, leading to a warming effect.
Observed Climate Changes
Observed Climate Changes
Changes in Earth's climate, such as shrinking glaciers, earlier ice breakups, and shifting plant/animal ranges, already seen.
Irreversible Changes
Irreversible Changes
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Sea Level Rise
Sea Level Rise
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Mitigation and Adaptation
Mitigation and Adaptation
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IPCC
IPCC
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Future Climate Impacts
Future Climate Impacts
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Ongoing Climate Change
Ongoing Climate Change
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Irreversible Climate Adjustments
Irreversible Climate Adjustments
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Human-caused Warming
Human-caused Warming
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Critically High Temperatures
Critically High Temperatures
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Climate Change Impacts
Climate Change Impacts
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Extreme Climate Events
Extreme Climate Events
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Urgent Global Action Needed
Urgent Global Action Needed
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Future Climate Dependence
Future Climate Dependence
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Study Notes
Global Climate Change: Present and Future Impacts
- Global climate change is already affecting the environment, not a future problem.
- Glaciers/ice sheets are shrinking, ice on rivers/lakes breaking up earlier.
- Plant and animal ranges shifting, early plant/tree blooming.
- Predicted effects are occurring: sea ice loss, accelerated sea level rise, intense/longer heat waves.
- Change rate is faster than assessed.
- Changes are irreversible over centuries/millennia (IPCC).
- Observed climate changes unprecedented in human history (IPCC).
Magnitude & Rate of Change
- Climate change and associated risks depend on near-term mitigation/adaptation.
- Adverse impacts, losses, and damages increase with temperature increases.
- Global temperatures expected to rise for decades (due to human activities).
- Global average temperature expected to reach or exceed 1.5 degrees Celsius within the few decades.
Temperature Increase
- Human emissions warmed climate nearly 2 degrees Fahrenheit (1.1 degrees Celsius) since 1850-1900 (IPCC 6th Assessment).
- Projected temperature to rise about 3 degrees Fahrenheit (1.5 degrees Celsius) in next few decades.
Future Effects and Mitigation
- Severity of effects depends on human activity.
- Higher emissions mean more extremes and widespread damage.
- Future effects depend on total carbon dioxide emissions.
- Reducing emissions may avoid worst effects.
- Delaying global action risks an unlivable future.
- Scientific evidence is unequivocal: climate change threatens human well-being and the planet.
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