Research: getting close to tipping points

November 2020. In the paper, published as a commentary in the journal Nature this month, the group of researchers summarize the latest findings related to the threat of tipping points as part of effort to “identify knowledge gaps” and suggest ways to fill them. “We explore the effects of such large-scale changes,” the scientists explain, “how quickly they might unfold …

Nearly all of Colorado is under some drought status – 20 years into megadrought in the West

Also see: https://blogs.ei.columbia.edu/2020/04/16/climate-driven-megadrought-emerging-western-u-s/ – April 20th, 2020 The Colorado Sun | evan@coloradosun.com Colorado currently is one of the drier parts of the country, and although conditions have improved in recent weeks, the long-term outlook for the state is relatively grim.  Much of Colorado continues to suffer through extreme drought, and nearly all of the state is experiencing drought, according to the …

New climate modeling shows that worst-case scenarios do not go far enough

Modelling suggests climate is considerably more sensitive to carbon emissions than thought, by Jonathan Watts 13 Jun 2020, Guardian Worst-case global heating scenarios may need to be revised upwards in light of a better understanding of the role of clouds, scientists have said. Recent modelling data suggests the climate is considerably more sensitive to carbon emissions than previously believed, and experts …

Climate justice and one of the most important climate change articles: climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop

The severity of damaging human-induced climate change depends not only on the magnitude of the change but also on the potential for irreversibility. This paper shows that the climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop. Following cessation of emissions, removal of atmospheric carbon dioxide decreases radiative …

Tropical Storms Are Getting More Intense: nearly four decades of satellite data from storms around the world, the likelihood of a storm reaching Category 3 or above, with sustained winds above 110 miles per hour, increased 8 percent per decade

 Jordan Davidson May. 19, 2020 Climate Home News The devastation caused by hurricanes in the Bahamas, Puerto Rico, North Carolina and Houston over the last few years is a direct effect of the climate crisis, which is making tropical storms stronger and wetter, according to a new study from the University of Wisconsin and the National Oceanic and Atmospheric Administration (NOAA), as CNN reported. The study looked …

Air Quality in the Northern Colorado Front Range Metro Area: The Front Range Air Pollution & Photochemistry Experiment (FRAPPÉ), 2019 update

Air Quality in the Northern Colorado Front Range Metro Area: The Front Range Air Pollution and Photochemistry Éxperiment (FRAPPÉ), by Frank Flocke, Gabriele Pfister, James H. Crawford, Kenneth E. Pickering, Gordon Pierce, Daniel Bon, Patrick Reddy 22 December 2019 https://doi.org/10.1029/2019JD031197 Earlier (2016) North Front Range Oil and Gas Air Pollutant Emission and Dispersion Study https://www.colorado.gov/airquality/tech_doc_repository.aspx?action=open&file=CSU_NFR_Report_Final_20160908.pdf We describe the resources used, the …

Last summer’s 600 billion tons of ice loss in Greenland raised global sea levels by nearly a 10th of an inch — or 2.2 millimeters — in two months

The Hill, March 2020. Greenland lost 600 billion tons of ice last summer due to an exceptionally warm season, according to a study released Wednesday.  The study was published Wednesday in the journal Geophysical Research Letters.  The data was drawn from satellites designed to measure changes to the earth’s gravitational pull that result from changes in mass, including water.  Last summer’s …

The Law and Science of Climate Change Attribution

Posted on February 7th, 2020 by Tiffany Challe, Climate Law Blog By Michael Burger, Jessica Wentz, and Radley Horton THE LAW AND SCIENCE OF CLIMATE CHANGE ATTRIBUTION The evolving field of climate change attribution science plays a critical role in shaping our understanding of how humans are affecting the global climate system, and in informing discussions about responsibility for climate change impacts. Attribution …