There’s striking new evidence that Earth’s atmosphere is increasingly saturated with carbon dioxide, the major gas from fossil fuel emissions that trigger climate change.
Measurements of the climate-changing gas by instruments high on a mountain in Hawaii and around the world show that global emissions from burning fossil fuels rose last month to levels higher than at any time in human history – and higher than it has been in hundreds of thousands of years.
http://www.sfgate.com/science/article/High-CO-2-levels-set-a-record-5443592.php