Climate scientist and author Michael Mann examines the potential impact of Donald Trump’s election on the fight against climate change. Trump has repeatedly dismissed climate change as a “hoax,” and has pledged to withdraw the United States from the Paris Agreement, a global climate pact aimed at reducing greenhouse gas emissions. Mann argues that such actions would have “devastating” consequences, not just for the United States, but for the entire planet. He also warns that rolling back environmental regulations would jeopardize public health and exacerbate air and water pollution.