Ronald Orenstein a zoologist from Toronto and Thomas Marent have just published a new book: Rainforest: Dispatches From Earth's Most Vital Frontlines
Rainforests are the lungs of our planet - regulators of the earth's temperature and weather.
They are also home to 50 per cent of the world's animals and plants - which for centuries have been the source of many of our key medicines.
And yet we've all heard of their systematic destruction; the raising of trees to make way for plantations of oil palms or cattle, the disenfranchisement of indigenous peoples, and the corruption that leads to illegal logging and pollution.
Find out more about this fascinating book in our books section.