Scientists may have misread a 2-billion-year-old clue about Earth
Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth’s carbon cycle, may instead have been produced by local magma, hydrocarbons, and methane-eating microbes.
This is a short extract from a report by Science Daily. The full text stays with the publisher — follow the link to read it there.
Read at source