United Nations warns climate change on earth has reached 'code red'

The just-released United Nations climate report says global warming has only accelerated and that hotter temperatures are more likely to produce more frequent heat waves, drought and other extreme weather by the 2030s. Melting arctic ice will continue to cause sea level to rise. Dr. Noah Diffenbaugh with Stanford University's Department of Earth Systems Science, says the impacts of climate change are already happening, but depending on human behavior and decarbonizing, we could lessen these impacts.

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