The impact of climate change on corn-price volatility outweighs movements caused by energy market policies and oil prices, according to research published in the journal Nature Climate Change. “U.S. corn-price volatility exhibits higher sensitivity to near-term climate change than to energy policy influences or agriculture-energy market integration,” researchers Noah S. Diffenbaugh, Thomas W. Hertel, Martin…
As Arctic sea ice breaks apart, massive amounts of methane could be released into the atmosphere from the cold waters beneath. High concentrations of the greenhouse gas have been recorded in the air above cracks in the ice. This could be evidence of yet another positive feedback on the warming climate – leading to even…
A new survey finds that a majority of Americans believe that weather in the United States is getting worse, and they are linking it to global warming.
Fertilizers used in growing feed crops for cattle produce the most potent of the greenhouse gases causing climate change
A group of 49 former NASA scientists and astronauts believes NASA is playing fast and loose with climate change science. In March, the group sent a letter to NASA administrator Charles Bolden, Jr., blasting the agency for making unwarranted claims about the role of carbon dioxide in global warming, Business Insider reported. “We believe the…
The second-largest mass extinction in Earth’s history coincided with a short but intense ice age during which enormous glaciers grew and sea levels dropped. Although it has long been agreed that the so-called Late Ordovician mass extinction — which occurred about 450 million years ago — was related to climate change, exactly how the climate…
It is very much worth checking out an item on Real Climate, from two Dutch scientists. They have found a paper by James Hansen and others from 1981, before climate change was even an occasion for political disagreement.Hansen is now famous in the world of climate studies, and infamous to the right wing, but back then he was a 40-year-old…
Fossil fuel derived carbon dioxide has a serious impact on global climate but also a disturbing effect on the oceans, know as the other CO2 problem. When CO2 dissolves in seawater it forms carbonic acid and results in a drop in pH, the oceans acidify. A wealth of short-term experiments has shown that calcifying organisms,…
Averting the worst consequences of human-induced climate change is a “great moral issue” on a par with slavery, according to the leading NASA climate scientist Jim Hansen. Hansen, will be awarded the prestigious Edinburgh Medal for his contribution to science, and in his acceptance speech will call for a worldwide tax on all carbon emissions….
Fifty-five million years ago, the world abruptly warmed by a scorching 5 degrees Celsius, the oceans turned acidic, and life ran a gantlet of extinction. Sound familiar? That was the closest nature ever came to foreshadowing the fossil-fuel-fed warming that is just getting underway now. But for 15 years, climate scientists have puzzled over how…