Which is the largest rainforest?

The Amazon rainforest is by far the largest tropical rainforest on Earth, spanning roughly 5.5 million square kilometres across nine South American countries, with most of it in Brazil. It is home to an estimated 10% of all known species on the planet, making it one of the most biodiverse places anywhere. Often called the lungs of the planet, it plays a major role in absorbing carbon dioxide and shaping global weather. Deforestation is a serious ongoing threat to its future.