In tropical countries such as Indonesia, Brazil and the Congo, rapid deforestation may have accounted for up to 75% of the observed surface warming between 1950 and 2010. Our new research took a closer look at this phenomenon.

Using satellite data over Indonesia, Malaysia and Papua New Guinea, we found deforestation can heat a local area by as much as 4.5 degrees Celsius, and can even raise temperatures in undisturbed forests up to 6km away.

More than 40% of the world's population live in the tropics and, under climate change, rising heat and humidity could push them into lethal conditions. Keeping forests intact is vital to protect those who live in and around them as the planet warms.

Deforestation hot spots

At the recent climate change summit in Glasgow, world leaders representing 85% of Earth's remaining forests committed to ending, and reversing, deforestation by 2030.