Christian Science Monitor: A group of scientists who monitor Earths atmosphere using data from Hawaiis Mauna Loa Observatory announced yesterday that our climate has reached a milestone.
The Earth's atmosphere now contains 400 parts per million (ppm) of carbon dioxide, a level of greenhouse gases considered a symbolic limit, the team of researchers wrote in a study published in the journal Nature Climate Change. And that level's not going to change anytime soon, they say.
"Our forecast supports the suggestion that...