httpv://www.youtube.com/watch?v=l3elhydklrQ
With record heat this summer, you may be wondering if it is just a blip or the result of global warming. In this video, Michael Wehner from Berkeley Lab’s Computational Research Division invites you to send in your questions on climate change. E-mail your questions to askascientist@lbl.gov and watch for a follow-up video with the answers.
In related news, this new NASA video shows how extremely hot summers are becoming far more routine. James Hansen and colleagues use the bell curve to show the growing frequency of extreme summer temperatures in the Northern Hemisphere, compared to the 1951 to 1980 base period. The mean temperature for the base period is centered at the top of the green curve, while hotter than normal temperatures (red) are plotted to theright and colder than normal (blue) to the left. By 1981, the curve begins to shift noticeably to the right, showing how hotter summers are the new normal. The curve also widens, due to more frequent hot events. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio. Read the Full Story.
