Associated Press: U.N. Secretary-General Ban Ki-moon says governments' pledges to cut global warming emissions aren't enough and should be reviewed before 2020.
In an interview Sunday on the eve of a U.N. climate summit in Paris, Ban told The Associated Press he endorsed plans for reviewing targets every five years.
"I would propose that the first such review session should be held before 2020," Ban said.
In Paris, governments are supposed to adopt a landmark deal to fight climate change and help vulnerable...