For 67 years, the observatory on Hawaii's Mauna Loa volcano has been taking these measurements daily — tracking the invisible ...

New data shows that CO2 levels have broken through 430 parts per million, an indication that human-caused global warming will ...

Today (Dec. 18), scientists with the space agency unveiled the first carbon maps ... carbon dioxide levels with a precision of about 1 part per million, or ppm. (Today's carbon concentration ...

For the first time in recorded history, the concentration of ... “I’m even more certain CO2 causes global heating than I am that smoking causes cancer. The world is already more than 2 ...

"How much carbon dioxide is the problem," he asks. "How much carbon dioxide is in the atmosphere? It's 0.04%. And of that 0.04%, human beings around the world create 3%. And of that 3%, Australia ...

The latest anomaly in the climate system that can’t be fully explained by researchers is a record annual jump in the global mean concentration ... global CO2 emissions means the world will ...

The work has revealed a contradiction: while atmospheric CO2 is the main source of carbon for crops, its high concentration in ... distributed around the world and is made from rock phosphate ...