It’s a sweeping Executive Order that requires review of the Obama era Clean Power Plan regulations and then likely rescission of those rules, as well as rescinds federal government guidance documents providing for better accounting of the social cost of carbon pollution and climate change.  Pretty sad day not only for environment but everybody, though action was long anticipated.  Especially sad is President Trump’s hoax that coal mining jobs will come back because of this action.  Those jobs are never coming back.  The coal mining industry is in bad shape because of competition from cheap natural gas, not because environmental regulations.