Timeline : Earth’s average temperature
▻http://thebulletin.org/timeline-earths-average-temperature9894
A history of Earth’s average #temperature, provided courtesy of the amazing webcomic xkcd.com.
Timeline : Earth’s average temperature
▻http://thebulletin.org/timeline-earths-average-temperature9894
A history of Earth’s average #temperature, provided courtesy of the amazing webcomic xkcd.com.