Study Highlights Key Sectors to Effectively Reduce Methane Emission
The most significant greenhouse gas, next only to carbon dioxide (CO
2), is methane (CH
4). The concentration of CH
4 in the atmosphere has increased over two times since the preindustrial age because of the increased emissions due to human activities.
Image Credit: NIES.
4 has a global warming potential of 86 times that of CO
2 over a period of two decades, it remains in the atmosphere for around 10 years, which is a much shorter period compared to CO
2, which stays for several centuries.
Thus, it is predicted that controlling the emission of CH
4 can be advantageous for a relatively shorter period toward the Paris Agreement goal of limiting global warming much below 2°C.
Human activity caused the long-term growth of methane newzealandstar.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from newzealandstar.com Daily Mail and Mail on Sunday newspapers.
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.
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