Prove Paris was more than paper promises

Prove Paris was more than paper promises

SOURCE: Nature DATE: Aug 1, 2017 SNIP: Beyond US President Donald Trump’s decision in June to withdraw the United States from the 2015 Paris climate agreement, a more profound challenge to the global climate pact is emerging. No major advanced industrialized country is on track to meet its pledges to control the greenhouse-gas emissions that cause climate change. Wishful thinking and bravado are eclipsing reality. Countries in the European Union are struggling to increase energy efficiency and renewable power to the levels that they claimed they would. Japan promised cuts in emissions to match those of its peers, but meeting the goals will cost more than the country is willing to pay. Even without Trump’s attempts to roll back federal climate policy, the United States is shifting its economy to clean energy too...
Warming ponds could accelerate climate change

Warming ponds could accelerate climate change

SOURCE: Phys.org DATE: February 20, 2017 SNIP: Rising temperatures could accelerate climate change by reducing the amount of carbon dioxide stored in ponds and increasing the methane they release, new research shows. The scientists experimentally warmed an array of ponds over seven years by 4-5ºC and studied the impacts on greenhouse gas emissions and rates of metabolism. Changes observed after the first year became “amplified” over a longer period, according to the study by the University of Exeter and Queen Mary University of London. After seven years, a pond’s ability to absorb carbon dioxide (CO2) was reduced by almost half, while methane release almost doubled. Lakes and ponds cover about 4% of Earth’s surface (excluding areas covered by glaciers and ice sheets) but they are disproportionately large sources of methane and CO2 to the atmosphere. Ponds of less than one square metre are responsible for releasing about 40% of all methane emissions from inland waters. “Our findings show that warming can fundamentally alter the carbon balance of small ponds over a number of years, reducing their capacity to absorb carbon dioxide and increasing emissions of methane. “This could ultimately accelerate climate...
Effect of methane on climate change could be 25% greater than we thought

Effect of methane on climate change could be 25% greater than we thought

SOURCE: Phys.org DATE: January 10, 2017 SNIP: Methane emissions caused by human activity may have a bigger impact on global warming than previously thought, scientists have found. Research led by the University of Reading indicates that emissions of methane due to human activity have, to date, caused a warming effect which is about one-third of the warming effect due to carbon dioxide emissions – this methane contribution is 25% higher than previous estimates. The scientists calculated that, while carbon dioxide remains by far the most significant gas driving human-induced climate change, methane, while much less abundant, is even more potent than previously thought. They found that a one tonne emission of methane has the equivalent warming effect of 32 tonnes of carbon dioxide – up from the previous estimate of...