This piece explains. Here in the UK we seem to be heading in the same direction and one would hope that our politicians would sit up and take notice, but sadly there is no evidence of this happening. Theresa May, when asked about climate change at the G-20 summit, mouthed some platitudes about wanting the USA to get back into the Paris Accord. Jeremy Corbyn (Labour leader) is of the same opinion, even though his brother Piers is a confirmed sceptic.