Decadal growth rate of methane in the atmosphere varied dramatically over the past 30 yeas with three distinct periods of slowed (1988-1998), quasi-stationary (1999-2006) and renewed (2007-2016) phases. An inverse analysis with atmospheric chemistry transport modeling explained these variations consistently. While emissions from oil and gas exploitation and natural climate events caused the slowed growth and the temporary pause, those from coal mining in China and livestock farming in the tropics drove the renewed growth.
Human activity caused long-term growth of greenhouse gas methane ANI | Updated: Jan 29, 2021 20:31 IST
Washington [US], January 29 (ANI): A study by an international team, published in the Journal of Meteorological Society of Japan, provides a robust set of explanations about the processes and emission sectors that led to the hitherto unexplained behaviors of CH4 in the atmosphere.
The growth rate (annual increase) of CH4 in the atmosphere varied dramatically over the past 30 years with three distinct phases, namely, the slowed (1988-1998), quasi-stationary (1999-2006) and renewed (2007-2016) growth periods. No scientific consensus is however reached on the causes of such CH4 growth rate variability.
brand-new border wall controversy, only this one involves the desert, in africa. spain s foreign minister says trump told him he should build a border wall across the entire sahara desert to thwart europe s migrant crisis. the white house is disputing the account, but let s go to chris cillizza, author of the point with chris cillizza. chris, my first question, i ve been to morocco, and that s just one stretch, right, of all of the sahara, i m just curious if the president realizes how big it is? okay, so here is your daily geography lesson, brooke. here we go! the sahara desert, as you can see here, basically covers most well, it covers east/west, the breadth of north central africa, roughly 3,000 miles from east to west. okay, now, how long is the border wall, you ask? remember, donald trump said the border wall, as proposed, can t be longer than what he s proposing. yes, it can be! it s about a thousand miles longer. you know, this is less than
across the central atlantic. this is tropical depression four. a lot of things working against the strengthening of this tropical depression, that being the upper level wind shear and also saharan dust coming off of north central africa. you see that on our dust monitor that s streaming right into the location where our particular tropical depression is located. this is the satellite loop. you see how poorly organized this particular system is. only winds at about 30 miles per hour. the national hurricane center doesn t believe the storm will impact land. that s good news. scattered showers, though, across the southeast. severe storms throughout the ohio river valley. we re focusing attention from cleveland to pittsburgh, indianapolis indianapolis, a possible tornado. a wet day new york to boston. have your raincoats and umbrellas handy. let s talk temperatures. cloud cover and rain in the forecast, only 79 for the big apple today. back to you. 79 is fine