Obama: Climate Change Cannot Be Denied

U.S. President Barack Obama says climate change, which he calls the greatest threat to the planet, can no longer be denied. He highlighted the issue during an Earth Day trip to Everglades National Park in the southern U.S. state of Florida on Wednesday. VOA correspondent Aru Pande has more from Washington.

© La Voix de l'Amérique - mercredi 22 avril 2015