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''.
Scientists at the US Department of Energy’s Lawrence Berkeley National Laboratory demonstrated the first direct observation of increased radiative forcing due to increased carbon dioxide levels in the atmosphere. This study, published in Nature , is the first to provide direct observational evidence linking rising carbon dioxide concentrations to the greenhouse effect.
Two previously unnoticed oceanic gateways of warm water have been linked to the extreme thinning of East Antarctica’s Totten Glacier according to new research from the University of Texas at Austin. This discovery raises concern for the state of the Antarctic ice sheet and rising sea levels.
Scientists at Florida State University are researching the fate of carbon released from during the thawing of long frozen permafrost soils in the arctic. According to their Geophysical Research Letter published this week, microorganisms are rapidly consuming the ancient carbon released from the permafrost, metabolizing it into carbon dioxide, and releasing it back into the environment. A dangerous cycle is underway whereby the regions of the Earth where permafrost is found continue to warm due to climate change and release more carbon which makes its way to the atmosphere as carbon dioxide via microorganisms and further contributes to climate change.