There are two types of rainforests: temperate and tropical.
The world’s largest rainforest is the Amazon Jungle! This massive rainforest covers 1.4 billion acres (5,500,000 square kilometers). At the heart of Amazonia is the Amazon River, the largest river in the world.
Source: Storyteller.Travel
ONCE AGAIN: The "OpenAxis" data does NOT correlate with ANY known, scientific surveys. For example, the Eastern Australia Temperate Forest.. by MANY sources is ~85,753 mi².
I'm starting to not enjoy Factle anymore. I have no idea why "OpenAxis" is constantly used as your sources. Could you not use others??