According to a new study, published in Geophysical Research Letters, thousands of tons of global-warming and ozone-depleting chemicals were released into the atmosphere, following the Tohoku 2011 earthquake. The new study is the first to show the importance of including the release of gases from natural disasters in emissions estimates.
Researchers from the National Science Foundation (NSF) have gathered evidence for the existence of a salty aquifer beneath Antarctica's ice-free McMurdo Dry Valleys, by using an airborne electromagnetic (AEM) sensor, known as SkyTEM, mounted to a helicopter-borne sensor. The salty aquifer may support microbial ecosystems and play an important role in contemporary biological processes in the Dry Valleys.
During the Neoproterozoic, a geological era which occurred about 542 million to one billion years ago, Earth experienced unusual episodes of global cooling that geologists refer to as ''Snowball Earth''.