The last time the planet had such high levels of carbon dioxide in the atmosphere was likely more than 30 million years ago, Keeling said, long before humans roamed Earth and during a time when the ...

The type of cloud that is formed will determine what level the cloud is in the atmosphere. The various cloud types have different characteristics that are dictated by the elements available ...

In climate news, the National Oceanic and Atmospheric Administration has revealed global carbon dioxide levels exceeded 430 ...

Earth’s atmosphere now has more carbon ... during a time when the climate was vastly different. He said it’s alarming not only how high CO2 levels have climbed, but also how quickly.