I found a report in the "Independent" claiming that the US will meet Paris accord commitments even if Donald Trump withdraws because renewable energy will be the cheapest form of power in almost every country by 2020 (With the exception of a few countries in Southeast Asia).
Which means that prices for clean energy will soon sink to lower than more polluting sources so the US will use more renewable resources not because they like them but because they are cheaper.
sounds like good news ( of course not for Trump!)