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Deep Forest Soils Lose Carbon as Temperatures Climb


Berkeley Lab scientists take soil samples at Blodgett Forest (Credit: Roy Kaltschmidt/Berkeley Lab)
A new study led by Berkeley Lab has provided the first physical evidence that warmer temperatures lead to a significant drop in the stored carbon stock in deep forest soils. An experiment in California’s Sierra Nevada forest found that the carbon content in subsoils dropped 33% over five years.
The research team, led by Margaret Torn, artificially heated plots of soil down to 1 meter deep by 4 degrees Celsius, which is the amount of heating projected by century’s end in a business-as-usual climate scenario. (The heating followed natural diurnal and seasonal cycles.) “We heated the whole soil profile, whereas most experiments just heat the surface,” Torn said. “That deeper soil has a very large stock of carbon and because it’s old people have assumed that it’s also stable. But we’re saying, nope, actually, you can lose this deep, older carbon.” ....

United States , Jennifer Soong , Roy Kaltschmidt Berkeley Lab , Berkeley Lab , Blodgett Forest , Sierra Nevada , Margaret Torn , Science Advances , ஒன்றுபட்டது மாநிலங்களில் , ஜெனிபர் சூங் , பெர்க்லி ஆய்வகம் , ப்லோட்ஜெட்ட் காடு , சியரா நெவாடா , மார்கரெட் கிழிந்தது ,

U.S. Can Run Primarily on Renewable Energy by 2050 For Cost of $1 Per Person Per Day—Says New Research


U.S. Can Run Primarily on Renewable Energy by 2050 For Cost of $1 Per Person Per Day—Says New Research
Mar 2, 2021
Reaching zero net emissions of carbon dioxide from energy and industry by 2050 can be accomplished by rebuilding U.S. energy infrastructure to run primarily on renewable energy, at a net cost of about $1 per person per day, says a new study.
Researchers at the Department of Energy’s Lawrence Berkeley National Laboratory, the University of San Francisco (USF), and Evolved Energy Research created a detailed model of the entire U.S. energy and industrial system to produce the first detailed, peer-reviewed study of how to achieve carbon-neutrality by 2050. ....

University Of San Francisco , United States , Jim Williams , Jenny Nuss , Department Of Energy Lawrence Berkeley National Laboratory , Energy Systems Management , Energy Outlook , Technology Baseline , Intergovernmental Panel On Climate Change , Berkeley Lab , Energy Research , Lawrence Berkeley National Laboratory , San Francisco , Evolved Energy Research , Intergovernmental Panel , Climate Change , Carbon Neutral Pathways , Margaret Torn , Arctic Oil Drilling Plans Suffer , Stunning Setback , பல்கலைக்கழகம் ஆஃப் சான் பிரான்சிஸ்கோ , ஒன்றுபட்டது மாநிலங்களில் , ஜிம் வில்லியம்ஸ் , ஜென்னி நூஸ்ஸ் , துறை ஆஃப் ஆற்றல் லாரன்ஸ் பெர்க்லி தேசிய ஆய்வகம் , ஆற்றல் அமைப்புகள் மேலாண்மை ,