The world marks Earth Hour, but are leaders doing enough to fight climate change?
Cities all over the world turned off their lights to mark Earth Hour, but a new climate change warning from the United Nations says "humanity is on thin ice." CNN's Kim Brunhuber speaks with Henna Hundal, a delegate to the UN Climate Change Conference.
UP NEXT
UP NEXT
-
She reluctantly volunteered at a homeless shelter on spring break. It changed her life – and thousands of others
CNN -
See Trump’s response to federal indictment on Truth Social
CNN -
See Russia’s aerial footage allegedly showing their forces targeting Ukrainian formations
CNN -
‘Absolutely historic’: George Conway reacts to Trump indictment
CNN -
Why the tide is turning against working from home
CNN -
Reporter flags ‘little ray of hope’ for Trump in detail of indictment
CNN -
‘Hazardous’ air quality reaches Mid-Atlantic
CNN -
Donald Trump and close aides gathering in New Jersey ahead of a possible indictment
CNN -
Lionel Messi set to join MLS club Inter Miami
CNN -
One-on-one with Manchester City star Kevin De Bruyne
CNN -
My Drive with Yvonne Nelson
CNN -
Conservative Christian broadcaster Pat Robertson dead at 93
CNN -
‘The show did break me’: Tom Holland reveals why he’s taking acting break
CNN -
Companies want you back in the office. What leverage do you have?
CNN -
African designers making sustainability fashionable
CNN -
Kazakhstan facing difficult geopolitical landscape
CNN