1. Amazon
At around 2.3 million square miles, or more than 5.95 million square kilometers, the Amazon rainforest is the world’s largest and most biodiverse forest. Spanning Brazil, Bolivia, Colombia, Ecuador, French Guiana, Guyana, Peru, Venezuela and the Republic of Suriname, the forest is home to one in 10 known species of wildlife (with new species discovered almost daily). Sadly, the Amazon is facing unprecedented environmental challenges due to deforestation and wildfires; most recently in 2019, some 72,519 square kilometers were burned in the region.
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