UN scientists warn drastic steps needed to prevent climate change catastrophe

Scientists warned that human-induced climate change is warming the planet to the point where it is causing irreversible damage in some parts of the world. The report was released by the United Nations Intergovernmental Panel on Climate Change. Climate Scientist Katharine Hayhoe of The Nature Conservancy joined Amna Nawaz to look at what can be done to change the direction the planet is headed.
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