President Trump has made his decision to withdraw from the Paris climate accord, according to two sources with direct knowledge of the decision. Details on how the withdrawal will be executed are being worked out by a small team including EPA Administrator Scott Pruitt. They're deciding on whether to initiate a full, formal withdrawal — which could take 3 years — or exit the underlying United Nations climate change treaty, which would be faster but more extreme.
Why this matters: Pulling out of Paris is the biggest thing Trump could do to unravel Obama's climate legacy. It sends a combative signal to the rest of the world that America doesn't prioritize climate change and threatens to unravel the ambition of the entire deal.