The Amazon Rainforest is home to thousands of animal and tree species, making it a biodiversity hotspot. It is also critical in the fight to stop global warming. Since the 1970s, an area of ancient rainforest the size of California has been lost.

The primary human source of carbon dioxide (CO2) in the atmosphere is from the burning of fossil fuels for energy production and transport. Another leading cause is deforestation, which is responsible for more greenhouse gas emissions than all...