Scientists discovered the world's oldest fossils - and they date back 3.7 billion years
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A new study out of shows evidence that life on Earth may have begun even earlier than previously thought: researchers from the University of Wollongong have found fossilized evidence of ancient microbial life in Greenland dating back 3.7 billion years. The new discovery predates the previous earliest signs of life by about 220 million years. Ironically enough, the discovery was only possible due to global warming. The ongoing melting of Greenland’s perennial snow...