Image in the public domain
Greenhouse gas emissions in March were some of the highest ever recorded on the planet in millions of years. Carbon dioxide emissions have built up over time and increased the saturation of carbon dioxide in the atmosphere up to 400 parts per million. Listen to learn about how scientists are able to determine past levels of carbon dioxide and measure this current trend.
Story Length: 4:30
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September 23, 2014
5:12
A recent report shows carbon dioxide levels in the atmosphere rose at a record rate in 2013. Humans aren’t the only species affected by these changes. A new report by the National Audubon Society makes it clear that bird species in the U.S. and Canada are at risk of losing their habitats and potentially their lives due to climate change. Listen to this public radio story with your class to learn more about the links between changing temperatures and bird habitat and survival.
Read MoreMarch 6, 2014
4:20
Is it fair to charge countries per carbon emission? Some leading researchers think so. They also believe that this could motivate countries to be more prepared for climate change and energy reductions.
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