EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Doubling atmospheric CO2 would lead to a 1
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Melting polar ice will slow down warming trends because heat is absorbed in the process
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Temperature and CO2 levels are proven to be related, so the increasing levels of CO2 currently being observed will lead to more warming
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None of the above
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Detailed explanation-1: -Increases in average global temperatures are expected to be within the range of 0.5°F to 8.6°F by 2100, with a likely increase of at least 2.7°F for all scenarios except the one representing the most aggressive mitigation of greenhouse gas emissions.
Detailed explanation-2: -Higher temperatures are worsening many types of disasters, including storms, heat waves, floods, and droughts. A warmer climate creates an atmosphere that can collect, retain, and unleash more water, changing weather patterns in such a way that wet areas become wetter and dry areas drier.
Detailed explanation-3: -This whole sequence is an example of a positive feedback loop-global warming is melting ice, thus reinforcing global warming, which amplifies ice loss.
Detailed explanation-4: -The warmer temperatures are having impacts in the Arctic region. Sea ice is melting, frozen ground (called permafrost) is thawing, and habitat is shrinking for wildlife that rely on cold temperatures. Arctic sea ice cover is shrinking at a rate of 13% per decade.