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 ...

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 ...

"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 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 ...