As President Donald Trump's administration looks to reverse a cornerstone finding that climate change endangers human health and welfare, scientists say they need to look around because it’s obvious how bad global warming is and how its getting worse.

President Donald Trump’s top environmental regulator is recommending the US government scrap its formal conclusion that greenhouse gases endanger the public, a move that would sweep away the legal foundation for regulations limiting planet-warming pollution from power plants,

The 2009 finding under the Clean Air Act is the legal underpinning of a host of climate regulations for motor vehicles, power plants and other pollution sources.

Lee Zeldin called for a rewrite of the agency's finding that determined planet-warming greenhouse gases endanger public health and welfare.