http://www.nasa.gov/content/goddard/2015-arctic-sea-ice-maximum-annual-extent-is-lowest-on-record/
The sea ice cap of the Arctic appeared to reach its annual maximum winter extent on Feb. 25, 2015, according to data from the NSIDC. […] this year’s maximum extent was the smallest on the satellite record and also one of the earliest.
The average carbon dioxide reading surpassed 400 parts per million at the research facility atop the Mauna Loa volcano on the island of Hawaii […] The best available evidence suggests the amount of the gas in the air has not been this high for at least three million years […]
http://www.nytimes.com/2013/05/11/science/earth/carbon-dioxide-level-passes-long-feared-milestone.html
Climate Change Denier’s Own Study Changes His Mind
Professor Richard Muller, one of the US’ foremost climate change deniers, has finally changed his views on global warming thanks to a new study… his own. After conducting research on the subject, Muller says he has had a “total turnaround” and is no longer sceptical about the threats of greenhouse gases, according to The Guardian.
The results of Muller’s study, the Berkeley Earth Surface Temperature or BEST project, showed that the land temperature has risen 2.5 degrees Fahrenheit in the past 250 years, with the majority of that occurring in the last 50 years alone. Even more damningly, the data suggests that the increase is due almost exclusively to human production of greenhouse gases.
Muller, a physicist, admits he was surprised by the findings, but will not deny climate change any more. “As scientists, it is our duty to let the evidence change our minds,” he said.