Siberian Permafrost In Danger Of Melting
British researchers have indicated that a large area of frozen Siberian ground may be thawed by global warming, resulting in a dangerous amount of carbon emissions from the soil.
The team, an international group of researchers from the UK, Russia, Switzerland and Mongolia and led by Oxford University scientists, has determined that a rise of 2.7 degrees Fahrenheit could release over 1,000 gigatons of carbon dioxide and methane, leading to a potential acceleration in warming.
The researchers came to the conclusion after studying stalactites and stalagmites within caves beneath the "permafrost frontier:" an area of permanently frozen ground tens of hundreds of yards thick. Stalactites and stalagmites can only be found after rainwater and melted snow drips into the caves. Accordingly, 500,000 years of permafrost conditions are recorded by the formations. Scientists believe that a warming period that took place 400,000 years ago indicates a warming of 2.7 degrees Fahrenheit would be sufficient to considerably thaw permafrost even further north than its current southern limit.
Permafrost currently exists north of around 60 degrees latitude in the northern hemisphere, going halfway down Russia and Canada and stretching across Greenland. The warmest interglacial period pushed the permafrost boundary much further north. The researchers warn that if a similar event were to take place, this time caused by humans, a large amount of carbon could be released into the atmosphere.
At the same time, it is unknown how much carbon is held in permafrost. As Professor Julian Murton of the University of Sussex told Carbon Brief, "The area of permafrost in the northern hemisphere is larger than the whole of Canada's land mass (about 10 million square kilometers) and the number of [carbon measurements] is very limited."
That said, the study remains a cause for concern.
"With substantial global warming projected during the 21st century, which almost certainly will be amplified in Arctic regions (due to feedback effects in the global climate system)," Murton said, "we should be concerned about greenhouse gas release from thawing permafrost."
Carbon Emission Stalls For Three Consecutive Years
Good news for the planet: No significant increase in Global Carbon emission for three straight years. The estimate, though, does not include other greenhouse gases, including the much more potent methane, and emissions from non-industrial sources.
Arctic's Sea Ice Latest Condition is Definitely Alarming
Arctic's sea ice is melting and the public is ignorant with the current situation. Many countries around the Arctic, especially Canada dedicated itself in preventing the ice melting.
New catalyst for fuel cells made from graphene could help boost renewable energy, e-cars
Catalysts for fuel cells are usually created from platinum and other precious metals, greatly adding to their cost. Researchers from Los Alamos have now developed a new catalyst that is far more economical - and it's made from graphene.
Graphene is the strongest material in the world - even patched together
Graphene patched together like a quilt is still the strongest material in the world. This just may make it possible to take an elevator to space.
Earth's mantle rises, lifting ancient shoreline
Sea levels were higher from Virginia to Florida three million years ago, but not as high as once believed, thanks to mantle rise.
MORE IN ITECHPOST
The Role of Technology in Education in 2019
2019 is proving to be another great year for trends in educational technology. There are many upcoming trends that seem to have a bearing on the future of the sector with respect to technology.
New Retroreflective Material Could be Used in Nighttime Color-Changing Road Signs
BUFFALO, N.Y. -- A thin film that reflects light in intriguing ways could be used to make road signs that shine brightly and change color at night, according to a study that will be published on Aug. 9 in Science Advances.
Top 5 Video Games to Play for a Truly Unique First Date
Video games have a way of taking us outside of ourselves and live in a fantasy world. It's even better when you're playing a game with someone special!