The first time you see Planet Earth from space, it’s stunning; when you’ve spent 534 days in space—more than any other American—it still is! On his most recent trip the International Space Station NASA astronaut Jeff Williams used an Ultra High Definition video camera that he pointed at the planet 250 miles below; here he…
Seeping methane is driving a global warming feedback loop. Some Arctic lakes are starting to look like witches’ cauldrons. The above video shows an increasingly common site in northern latitudes. As global warming heats these areas up, the frozen ground is melting. And when permafrost turns from solid ground to looser mud, it releases gases…
On June 9 2016, Nuuk, the capital of Greenland, reached the warmest temperature ever recorded for the month of June anywhere on the island, 24 degrees Celsius (75 degrees Fahrenheit). An article from NSDIC, published June 22 elaborated on the broader situation: Surface melting on Greenland’s Ice Sheet proceeded at a brisk pace, with three…
According to a new NASA study, a class of widely used chemical coolants known as hydrofluorocarbons (HFC), found in refrigerators and in home and automobile air conditioners, contributes to ozone depletion by a small but measurable amount, countering a decades-old assumption. A class of widely used chemical coolants known as hydrofluorocarbons (HFC) contributes to ozone…
There are various signs in earth past which point at rapid climatic developments. Lovelock explains based on his modelling potential implications. White talked about ice core records which point to similar circumstances. Abrupt Climate Change explained by Jim White, 12 Minutes excerpt (@AGU 2014)
Our planet is a beautiful and awesome place. In a new video, join NASA scientists on a 40-minute visual tour of Earth from space, presented at the IMAX Theater at National Air and Space Museum in Washington, D.C. on September 10. “Vital Signs: Taking the Pulse of Our Planet” was the theme for NASA’s Goddard…
In 1896, Svante Arrhenius published below study on the greenhouse effect, the required carbon dioxide gas concentrations for change, and temperature variations deriving from mean, and processes in the climate system which draw down CO2, and the effects of CO2 on the climate on geological times, and elaborated on possible timescales of climate change. Arrhenius estimated based on the CO2 levels at…
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61…
A reservoir of abiotic methane has been discovered in the Arctic Ocean. This means that there is more of the greenhouse gas trapped under the seabed than previously thought. News: A reservoir of abiotic methane has been discovered in the Arctic Ocean https://cage.uit.no/news/new-source-methane-discovered-arctic-ocean/ Study: Abiotic methane from ultraslow-spreading ridges can charge Arctic gas hydrates http://geology.geoscienceworld.org/content/early/2015/03/27/G36440.1.full.pdf+html?ijkey=tNRcKxKHNcG5s&keytype=ref&siteid=gsgeology…