Environmental Changes Flashcard

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What is permafrost?

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Permafrost is a permanently frozen layer of soil found in polar regions and high mountain areas.

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What happens to permafrost when it thaws?

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Thawing permafrost can lead to the release of greenhouse gases and can cause land subsidence.

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What are zombie fires?

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Zombie fires are smoldering fires that can reignite after winter and burn underground, often in permafrost.

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How do infrared sensors help in detecting fires?

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Infrared sensors detect heat emitted by fires, allowing for early detection even through smoke or darkness.

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What is the significance of NASA satellite images in environmental monitoring?

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NASA satellite images provide critical data on environmental changes, such as deforestation, wildfires, and climate change impacts.

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What are the effects of climate change on weather patterns?

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Climate change can lead to more severe weather events, including hurricanes, droughts, and heavy rainfall.

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What is the impact of climate change on species extinction?

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Climate change increases the extinction rate of species by altering habitats and food availability.

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What are glaciers?

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Glaciers are large masses of ice that form from compacted snow and flow slowly over land.

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What happens to glaciers due to climate change?

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Climate change causes glaciers to melt at an accelerated rate, contributing to rising sea levels.

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What is the relationship between climate change and ocean levels?

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As glaciers and polar ice caps melt due to climate change, ocean levels rise, leading to coastal flooding.