Climate Science

Roy L Hales, The ECOReport, June 29, 2017

Average global temperatures keep rising. While 2016 is the warmest year on record, the previous record was set in 2015 and, before that, 2014.  A new joint report from Health Canada and the Science Media Centre of Canada (SMCC) puts this into perspective.  Canada is 1.7 degrees warmer than in 1948.

Christiana Figueres, Hans Joachim Schellnhuber, Gail Whiteman, Johan Rockström, Anthony Hobley & Stefan Rahmstorf, Nature, June 29, 2017

(As a contributer on the SCNCC listerserve says "This article whose authors include prominent scientists offers an optimistic green capitalist pathway to survival.")

NCC, Nature Climate Change, June 20, 2017

About 30% of the world’s population is currently exposed to potentially deadly heat for 20 days per year or more, and failure to reduce greenhouse gas emissions will increase the risk substantially, reports a paper published online this week in Nature Climate Change. The study suggests it is now almost inevitable that excess heat represents an increasing threat to human life, but that this threat will be greatly aggravated if greenhouse gas emissions are not considerably reduced.

Oliver Milman, The Guardian, June 20, 2017

Nearly a third of the world’s population is now exposed to climatic conditions that produce deadly heatwaves, as the accumulation of greenhouse gases in the atmosphere makes it “almost inevitable” that vast areas of the planet will face rising fatalities from high temperatures, new research has found.

Brian Kahn, Climate Central, June 20, 2017

Another month is in the global temperature record books. While May just missed setting a record, the data is another reminder that climate change is making the world hotter and pushing it into a new state.

This May was the second-warmest May on record, according to NASA data released on Thursday. The planet was 1.6°F (0.88°C) warmer than normal last month, trailing 2016 by just a 10th of a degree.

Oliver Milman, The Guardian, June 7, 2017

US coastal areas are set to be deluged by far more frequent and severe flooding events if greenhouse gas emissions aren’t slashed, with rare floods becoming the norm for place such as New York City, Seattle and San Diego, new research has found.

The study, undertaken by researchers from Princeton and Rutgers universities, found that along all of the US coastline, the average risk of a 100-year flood will increase 40-fold by 2050.

Michael Roberts, The Bullet, June 6, 2017

North America has been witness to two distinct forms of climate vandalism over the last year.

Bob Berwyn, Inside Climate News, May 26, 2017

The Arctic's record-warm winter has allowed thousands of square miles of sea ice off Alaska to melt more than a month early, leaving the shoreline vulnerable to waves and exposing dark ocean water to absorb more heat from the sun.

The loss of ice in the Chukchi Sea will boost the regional temperature and could increase precipitation over nearby land, said Alaska-based climate scientist Rick Thoman.

Lena R. Boysen, et. al., AGU Publications, May 29, 2017

Abstract: Massive near-term greenhouse gas emissions reduction is a precondition for staying “well below 2°C” global warming as envisaged by the Paris Agreement. Furthermore, extensive terrestrial carbon dioxide removal (tCDR) through managed biomass growth and subsequent carbon capture and storage is required to avoid temperature “overshoot” in most pertinent scenarios.

Jonathan Amos, BBC News, May 31, 2017

There has been an important development in the big crack cutting across the Larsen C Ice Shelf in Antarctica.

The fissure, which threatens to spawn one of the biggest bergs ever seen, has dramatically changed direction.

"The rift has propagated a further 16km, with a significant apparent right turn towards the end, moving the tip 13km from the ice edge," said Swansea University's Prof Adrian Luckman.

The calving of the berg could now be very close, he told BBC News.

Although he also quickly added that nothing was certain.

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