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Physics - Warning Signs of Tipping Point for Greenland Ice Sheet


Warning Signs of Tipping Point for Greenland Ice Sheet
May 27, 2021•
Physics 14, 80
A stability analysis of the ice sheet covering a large area of Greenland suggests that the ice melting may be approaching a point of no return.
Copernicus Sentinel data, processed by ESA
Satellite image of the Jakobshavn Glacier the fastest retreating glacier in Greenland. The analysis of melt rates in the last 150 years indicates the glacier might be approaching a tipping point.
Copernicus Sentinel data, processed by ESA
Satellite image of the Jakobshavn Glacier the fastest retreating glacier in Greenland. The analysis of melt rates in the last 150 years indicates the glacier might be approaching a tipping point.× ....

Qaasuitsup Kommunia , United Kingdom , United States , Alexander Robinson , Richard Blaustein , Tim Lenton , Martin Rypdal , Niklas Boers , Complutense University Of Madrid , Research News , University Of Troms , Potsdam Institute For Climate Impact Research , Intergovernmental Panel On Climate , National Academy Of Sciences , Intergovernmental Panel On Climate Change , Arctic University Of Norway , Proceedings Of The National Academy Science , University Of Exeter , Tipping Point , Greenland Ice , Copernicus Sentinel , Jakobshavn Glacier , National Academy , Intergovernmental Panel , Climate Change , Potsdam Institute ,

The Ruddiman Hypothesis: A Debated Theory Progresses Along Interdisciplinary Lines


The Ruddiman Hypothesis: A Debated Theory Progresses Along Interdisciplinary Lines
By Rich Blaustein - 24 February 2021
Scientist William Ruddiman is the lead proponent of the Early Anthropocene Hypothesis, which asserts pre-industrial land clearing and agricultural practices caused the release of historically underappreciated amounts of greenhouse gases, transforming the Earth. While Ruddiman’s hypothesis has engendered debate, a recent interglacial-ice age study and interdisciplinary archaeological investigations add nuanced support to Ruddiman’s effort and illuminate how humans have impacted the biosphere over thousands of years. In an interesting twist to this debate, these recent land clearing studies offer a clarifying, long-term context for natural solutions for the climate crises by highlighting the Earth’s regrowth potential. ....

United States , France General , Ruth Defries , William Ruddiman , Jesse Woodbridge , Steve Vavrus , Karlheinz Erb , Wayne Walker , Richard Houghton , Richard Blaustein , Polychronis Tzedakis , Wally Broecker , University College London , Proceedings Of The National Academies , Holocene Mapping Project , University Of Plymouth , Columbia University , Dorian Fuller Of University College London , University Of Wisconsin , Vienna University Of Natural Resources , Intergovernmental Panel On Climate Change , Woodwell Climate Research , Life Sciences , University Of Virginia , Woodwell Climate Research Center , Scientist William Ruddiman ,