National Teachers Association urged science teachers at all levels to emphasize that ‘no scientific controversy exists regarding the basic facts of climate change.’

Phil McKenna Inside Climate News 13 Sept 2018 “If there are controversies or other issues to deal with, we want them to have a good solid foundation in evidence-based knowledge to carry out that conversation,” said David Evans, executive director of the National Science Teachers Association. Credit: Peter Macdiarmid/Getty Images In response to what it sees as increasing efforts to …

Communicating about Tropical Cyclones and Climate Change: Science talking points

Shared by Interfaith Power and Light One of the clearest and most devastating impacts of climate change has been the dramatic amplification of damage done by hurricanes/tropical cyclones. Sea level rise to date has elevated storm surge, increasing the reach of coastal flooding driven by hurricanes, especially along low-lying areas.  As a result, the damages done by Superstorm Sandy extended …

Sea surface temperatures in the Arctic are warming at stunning rates

Sea surface temperatures in the Arctic are warming at stunning rates. To give you an idea, look at this blog containing images showing sea surface temperatures in one specific location near Svalbard for July 6 for each of the following years: 2014: -0.8°C or 30.6°F 2015: 6.2°C or 43.2°F 2016: 8.3°C or 47.0°F 2017: 14.4°C or 57.9°F 2018: 16.6°C or 61.9°F On …

‘Abrupt thaw’ of permafrost beneath lakes is irreversible this century and could significantly affect climate change models

Katey Walter Anthony, Thomas Schneider von Deimling, Ingmar Nitze, Steve Frolking, Abraham Emond, Ronald Daanen, Peter Anthony, Prajna Lindgren, Benjamin Jones, Guido Grosse. 21st-century modeled permafrost carbon emissions accelerated by abrupt thaw beneath lakes. Nature Communications, 2018; 9 (1) DOI: 10.1038/s41467-018-05738-9 Methane bubbles in ice on pond near Fairbanks, Alaska. Credit: Katey Walter Anthony Methane released by thawing permafrost from some Arctic lakes could …

“Today, many researchers are concluding that ecological systems around the planet will not be able to tolerate temperature rise much beyond 1.5C”

Avoiding the climate failsafe point “Although models of climate and vegetation change are greatly improving, they remain far from perfect,” write academics Lovejoy and Hannah in an editorial for the journal Science Advances. “For example, on the one hand, recent modelling studies indicate that limiting temperature increase to 1.5C will greatly reduce the impact on the ranges of insect, vertebrate, …

Climate on verge of tipping points. human-induced global warming of 2°C may trigger other Earth system processes, often called ‘feedbacks,’ that can drive further warming

Excerpt from Climate Progress:  Our current climate is near the very edge of stability, according to a major new study by 16 leading climate scientists.  We are pushing the planet toward an irreversible “Hothouse Earth” — catastrophic warming of 9°F (5°C) or more with sea level rise of up to 200 feet — the study warns. And we may be much closer to the …

IPCC 2018 report notes accelerated path to 1.5 C threshold, calls for “rapid and far-reaching” changes in the world economy

A final draft report from the United Nations‘ Intergovernmental Panel on Climate Change (IPCC) says only “rapid and far-reaching” changes in the world economy can keep global warming below the internationally agreed target barrier. “If emissions continue at their present rate, human-induced warming will exceed 1.5°C by around 2040,” the draft states, according to Reuters, which obtained a copy of the report. …

Jet stream related to both hail and winter coldsnaps, under polar warming

Science Daily, Feb 2018 A new study led by Northern Illinois University meteorologist Victor Gensini identifies a method for predicting the likelihood of damaging hailstorms in the United States — up to three weeks in advance. Hail is easily the most economically destructive hazard posed by severe thunderstorms, producing on average billions of dollars in U.S. losses each year, including damage to …

Global Temperature in 2017

18 January 2018 James Hansen[a], Makiko Sato[a], Reto Ruedy[b,c], Gavin A. Schmidt[c], Ken Lo[b,c], Avi Persin[b,c] Global Temperature in 2017 Abstract.  Global surface temperature in 2017 was the second highest in the period of instrumental measurements in the Goddard Institute for Space Studies (GISS) analysis.  Relative to average temperature for 1880-1920, which we take as an appropriate estimate of “pre-industrial” temperature, 2017 was …