U.S. Climate Envoy’s Future Uncertain With Paris Pact in Doubt

President-elect Donald Trump has vowed to back out of the Paris climate deal, but if he does he’ll still have some key decisions to make on how the U.S. will interact with other nations on energy and even climate matters.

One early casualty could be the climate envoy his predecessor named to put the U.S. front and center in international climate negotiations.

Trump hasn’t offered much detail since Election Day on his campaign vow to “cancel” the Paris Agreement and roll back domestic climate rules, though he has promised a quick decision on the climate pact after taking office in ...