T he concentration of carbon dioxide in the Earth’s atmosphere has reached levels not seen for 3 million years, scientists at Mauna Loa Observatory in Hawaii said Monday – offering a dire ...

In some ways, it’s just a number, but it’s a big number with enormous implications. For the first time, scientists measured an average concentration of atmospheric carbon dioxide of 400 parts ...

T he average level of carbon dioxide in the atmosphere across the globe passed 400 parts per million (ppm) last year, a symbolic and worrying milestone in growth of manmade climate change, the ...

These might look like cute watercolor paintings, but Jill Pelto’s art is based on hard data. Literally–the paintings are constructed around graphs showing climate change data. It’s like a ...