Climate change science is sound.  It does not reflect well on those dismissing the science.  
 https://www.skepticalscience.com/global-warming-scientific-consensus-advanced.htm

With or without the Paris Accords, the U.S. WILL achieve (as we have) ever cleaner forms of energy to power our economy.  Technology and innovation will surmount this problem.  The U.S. was getting a raw deal with the Paris Accords.  Anyone familiar with the way things "really work" on nearly every level, in countries such as Russia, China, & India, to name a few, know they may sign-on to agreements but comply only when convenient. 

Renewable energy has overtaken nuclear in the U.S.  The good:  Renewable energy is growing.  The not-so-good: Our best hope  for clean, sustainable, abundant energy (nuclear) is falling by the wayside.  If we include construction of nuclear power plants, in infrastructure spending, the US would likely exceed the Paris goals.  

Great documentary here:  
https://youtu.be/kBMj-96hols