The Ancient Atmosphere and Carbon and Nitrogen in the Earth's Crust

Carbon and nitrogen are central to life on Earth - life cannot exist without them, but an overabundance in the atmosphere imperils the life we have. So how much carbon and nitrogen is there on planet Earth? And how much was in the ancient atmosphere? Actually, no one is really sure.

Read the whole article on Newswise - Scinews

More from Newswise - Scinews