UNICEF Goodwill Ambassador Katy Perry delivers a special weather report on the devastating effects of climate change for the world’s children.

Greentraveller's Richard Hammond shows you some of the loveliest and greenest spots in London, and gives some tips for navigating through the city.

GreenpeaceVideo: In Sydney, between drought and dust storms, the effects of climate change are becoming more visible than ever.

Wild dolphins playing with a plastic bag and a camerawoman. A video by the Wild Dolphin Foundation.

Today, planet Earth is in a new era, the Anthroprocene. Humankind has harnessed and exploited Earth’s resources, changing its surface, devastating populations of wild animals, cutting down trillions of trees and leaving very little of what was “wild.” The enormous loss of biodiversity is not sustainable. How can we create a future in which both people and nature can thrive?

Can planet Earth survive? Can we survive as a species? Changes in population growth could be a key factor to allowing us to prosper and live in harmony with nature once again.

A video by the World Wildlife Fund WWF: Climate change is one of the greatest threats to wildlife and nature. Call your Senators at 1-800-217-7379 and ask them to support climate legislation on behalf of those who cannot call themselves.