Podcast
Questions and Answers
During ______ periods, the Earth's surface was covered in ice and snow.
During ______ periods, the Earth's surface was covered in ice and snow.
glacial
One theory about the causes of ice ages is that ______ volcanoes erupted, filling the atmosphere with ash and blocking sunlight.
One theory about the causes of ice ages is that ______ volcanoes erupted, filling the atmosphere with ash and blocking sunlight.
huge
Increased levels of ______ gases, like carbon dioxide, in the atmosphere are often linked to global warming.
Increased levels of ______ gases, like carbon dioxide, in the atmosphere are often linked to global warming.
greenhouse
The 2010 Pakistan floods, which killed at least 2000 people and affected 20 million, are an example of increased ______ caused by climate change.
The 2010 Pakistan floods, which killed at least 2000 people and affected 20 million, are an example of increased ______ caused by climate change.
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Extreme heat and lack of rain, known as ______, have impacted Africa over the past 30 years.
Extreme heat and lack of rain, known as ______, have impacted Africa over the past 30 years.
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Flashcards
Climate Change
Climate Change
Long-term alteration of temperature and typical weather patterns in a place.
Glaciation
Glaciation
Periods when the Earth's surface is covered by glaciers and ice.
Causes of Ice Ages
Causes of Ice Ages
Factors like volcanic eruptions and changes in Earth's orbit that can trigger glaciation.
Global Warming
Global Warming
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Recent Climate Impacts
Recent Climate Impacts
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Study Notes
Historical Climate Change
- Scientists study carbon dioxide levels to understand climate change over millions of years.
- Earth has experienced periods of high and low temperatures.
Glaciation
- Earth has experienced periods of extreme cold where ice covered large portions of the planet.
- Glaciers carved out landscapes.
- Theories about ice ages include erupting volcanoes, meteorites striking Earth, changes in Earth's orbit and changes in the Sun's activity.
Global Warming
- Earth's climate has shifted repeatedly, from ice ages to warm periods.
- Global warming events correlate with higher greenhouse gases (like carbon dioxide).
- Examples of greenhouse gas increases include large volcanic eruptions
Climate Change: Recent History
- Most countries release greenhouse gases.
- Global warming and climate change affect all countries.
- Impacts observed in the last 150 years include:
Flooding
- Global warming and climate change cause more frequent and extreme flooding.
- The 2010 Pakistan floods killed thousands and affected millions more.
Drought
- Climate change contributes to extreme heat and lack of rainfall.
- Africa has experienced increased drought conditions for the past 30 years, leading to crop failure and lake drying.
- Ecosystem damage and species loss (e.g., bushfires and koala bears) occur.
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Description
Explore the history of climate change, including glaciation and the modern influences on global warming. This quiz delves into the scientific theories surrounding climate shifts, the role of greenhouse gases, and the recent impacts of climate change on the planet. Test your knowledge about these critical environmental issues.
