“For the first time in history, the average temperature of the world’s Northern Hemisphere breached the 2 degrees Celsius above “normal” mark, for a few hours, according to a report by Slate’s Future Tense.”

Average temperatures across Northern Hemisphere breach 2 degrees Celsius limit

Also: Slate’s Future Tense
http://www.slate.com/blogs/future_tense/2016/03/01/february_2016_s_shocking_global_warming_temperature_record.html