The magic number: Holding warming under 2°C is the goal. It may already be too late.


Dan Kammen comments for the Washington Past on negative emission technology as a key to keep warming to two degrees, without major emissions cuts before the year 2020.

“Carbon capture today works technically, although not economically, yet,” said Dan Kammen, “The pieces are all there, and because it does look like we are going to need carbon-negative energy, there’s a big upside in exploring the options.”

Read more in The Washington Post

Photo from Andrew Burton/Getty Images