Wednesday, May 20, 2020

Ancient ocean oxygen levels associated with changing atmospheric carbon dioxide

Why do carbon dioxide levels in the atmosphere wax and wane in conjunction with the warm and cold periods of Earth's past? Scientists have been trying to answer this question for many years, and thanks to chemical clues left in sediment cores extracted from deep in the ocean floor, they are starting to put together the pieces of that puzzle.

from Latest Science News -- ScienceDaily https://ift.tt/36hWN6B

No comments:

Post a Comment

Ebola and hantavirus can start like the flu but turn deadly fast

Two dangerous viruses are back in the spotlight, reminding health officials how quickly infectious diseases can become serious threats. Hant...