UN Report Warns of Worsening Global Warming

Earth is getting so hot that in about a decade temperatures are likely to go beyond levels world leaders have been hoping to avoid, according to a new report the United Nations called a “code red for humanity.”

The report from the Intergovernmental Panel on Climate Change, which says that climate change is clearly caused by human activity, describes five scenarios for the future based on how much carbon emissions are cut.

The level of warming in each scenario goes beyond the strictest of two levels set in the 2015 Paris climate agreement. World leaders agreed then to try to limit warming to 1.5 degrees Celsius above temperatures in the late 19th century. However, the world has already warmed nearly 1.1 degrees since then.

Under each scenario, the report said, the world will go above 1.5 degrees of warming in the 2030s, earlier than some past predictions.

The 3,000-plus-page report from 234 scientists said the trends warming is already causing, such as accelerating sea level rise and more frequent extreme weather, will worsen.

As the world warms, places will get hit more not just by extreme weather but by multiple climate disasters at once, the report said.

And some harm from climate change — including melting ice, rising sea levels and changes to the oceans as they lose oxygen and become more acidic — will be irreversible for hundreds to thousands of years, the report said.

In the worst-case scenario, the world could be around 3.3 degrees hotter than now by the end of the century — though that outcome now seems less likely, the authors said.

In fact, in five previous reports, the world was heading towards the worst-case scenario. But this time, it is somewhere between the second- and third-worst of the five scenarios.

International climate negotiations are set for November in Scotland.


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