Reservoirs are underappreciated source of greenhouse gases

By Eric Sorensen28 September 2016 VANCOUVER, Washington (WSU News) – Washington State University researchers say the world’s reservoirs are an underappreciated source of greenhouse gases, producing the equivalent of roughly 1 gigaton of carbon dioxide a year, or 1.3 percent of all greenhouse gases produced by humans. That’s more greenhouse gas production than all of […]

Climate models: each 1°C increase in global temperature reduces global wheat production by average of 5.7 percent

By Janne Hansen23 November 2016 (PhysOrg) – Three independent methods of modelling climate change impact on yield display the same bleak tendency: When global temperature increases, wheat yield will decline. This is demonstrated in a study carried out by an international group scientists, including Professor Joergen E. Olesen and Postdoc Mohamed Jabloun from the Department […]

Graph of the Day: NOAA annual greenhouse gas index (AGGI), 1700-2015

30 April 2016 (NOAA) – The annual greenhouse gas index (AGGI) is a measure of the warming influence of long-lived trace gases and how that influence is changing each year. The index was designed to enhance the connection between scientists and society by providing a normalized standard that can be easily understood and followed. The […]

RealClimate: Trump, carbon, and the Paris agreement

By David Archer17 November 2016 (RealClimate) – The recent US election has prompted cries that the decision on Earth’s climate has now been irrevocably made, that the US has unilaterally decided to scrap the peak warming target from the Paris agreement of 1.5oC. What do the numbers say? Is Earth’s climate now irrevocably fracked? The […]

Study finds climate sensitivity to carbon forcing has been underestimated – ‘Significantly larger values are attained during warm phases’

By Ian Johnston11 November 2016 (Independent) – It is a vision of a future so apocalyptic that it is hard to even imagine. But, if leading scientists writing in one of the most respected academic journals are right, planet Earth could be on course for global warming of more than seven degrees Celsius within a […]

Grassland tuned to present environmental conditions suffers in a hotter future – Study finds no CO2 fertilization effect

STANFORD, California, 5 September 2016 (Carnegie Science) – One of the world’s longest-running, most comprehensive climate change experiments produced some surprising results. The extensive experiment subjected grassland ecosystems to sixteen possible future climates and measured many aspects of ecosystem performance and sustainability. This study, appearing in the September 5, 2016, Early Online Edition of the […]

As carbon dioxide levels hit 15 million year high, UN urges action to curb greenhouse gas emissions

30 September 2016 (UN) – The United Nations Office for Disaster Risk Reduction (UNISDR) urged world leaders to take note of the profound implications of record-high carbon dioxide readings this month and appealed for their increased commitment to reducing greenhouse gas emissions. “It is deeply disturbing to learn that global levels of 400 parts per […]

Historic shrinking of Antarctic Ice Sheet linked to CO2 spike

11 October 2016 (Lamont-Doherty Earth Observatory) – Twenty-three million years ago, the Antarctic Ice Sheet began to shrink, going from an expanse larger than today’s to one about half its modern size. Computer models suggested a spike in carbon dioxide levels as the cause, but the evidence was elusive – until now. Ancient fossilized leaves […]

No country on Earth is taking the 2 degree climate target seriously

By David Roberts 4 October 2016 (Vox) – One of the morbidly fascinating aspects of climate change is how much cognitive dissonance it generates, in individuals and nations alike. The more you understand the brutal logic of climate change — what it could mean, the effort necessary to forestall it — the more the intensity […]

Global atmospheric CO2 concentration passes 400 ppm threshold ‘for the indefinite future’

27 September 2016By Brian Kahn (Climate Central) – In the centuries to come, history books will likely look back on September 2016 as a major milestone for the world’s climate. At a time when atmospheric carbon dioxide is usually at its minimum, the monthly value failed to drop below 400 parts per million. That all […]

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