Declare states of 'climate emergency': U.N. chief to world leaders
Video Credit: Reuters Studio - Duration: 01:18s - Published
Declare states of 'climate emergency': U.N. chief to world leaders
World leaders should declare states of "climate emergency" in their countries to spur action to avoid catastrophic global warming, U.N.
Secretary General Antonio Guterres said in opening remarks to a climate summit on Saturday.
