5 Things to Know About the New UN Report on Climate Change
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GENEVA (AP) — The U.N.-appointed Intergovernmental Panel on Climate Change published a new report Monday summarizing the latest authoritative scientific information about global warming. Here are five important takeaways.
BLAMING HUMANS
The report says almost all of the warming that has occurred since pre-industrial times was caused by the release of heat-trapping gases such as carbon dioxide and methane. Much of that is the result of humans burning fossil fuels — coal, oil, wood and natural gas.
Scientists say that only a fraction of the temperature rise recorded since the 19th century — almost 1.1 degrees Celsius (2 degrees Fahrenheit) so far — can have come from natural forces.
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PARIS GOALS
Almost all countries have signed up to the 2015 Paris climate accord, which aims to limit global warming to an increase of 2 degrees Celsius (3.6 Fahrenheit) above the pre-industrial average by the year 2100. The agreements says that ideally the increase would be no more than 1.5 degrees Celsius (2.7 degrees Fahrenheit).
But the report’s 200-plus authors looked at five scenarios and concluded that all will see the world cross the 1.5-degree threshold in the 2030s — sooner than in previous predictions. Three of those scenarios will also see temperatures rise 2 degrees Celsius.
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