An investigation into the Congo Basin's carbon cycle clarifies one of the world's darkest blackwater rivers: the Ruki.

By calling the Amazon “the lungs of the world”, the forest’s role in the water cycle is overlooked.

There is no shortage of global suffering and need, says the director of Harvard Humanitarian Initiative, but you can still help.

Peat is partially decomposed plant matter that has accumulated over thousands of years.

Solar panels and electric cars come with their own environmental trade-offs like increased mining and extraction.

Peat beds around the world hold huge quantities of carbon and keep it from warming the planet. But rising temperatures and over-use could turn them from a brake on climate change into an accelerant.

But with chimps now endangered, we risk losing their forest-rebuilding abilities.