Although human efforts to combat global warming have focused on controlling the accumulation of carbon dioxide in the atmosphere, methane also plays an important role,media reported. Now, new analysis shows that this particularly powerful greenhouse gas emissions are now at an all-time high, and the surge has been largely driven by the burning of fossil fuels and increased agricultural activity.
Although methane is not as much in the atmosphere as carbon dioxide, its role in the overall trend in global warming is not negligible. This is because the greenhouse effect of this gas is about 28 times more powerful than carbon dioxide in 100 years of junk gas.
Methane comes from a variety of sources, such as white-buttoned cattle, fertilizer industries, leaking natural gas facilities and the world’s reservoirs. Overall, however, more than half of methane emissions come from human activity, and new research suggests that humans produce only more and more methane.
The new analysis, carried out by researchers at The Global Carbon Project, aims to track the effects of human-generated greenhouse gases on the Planet.
“Because of this virus, methane emissions cannot be reduced as much as carbon dioxide emissions,” said Rob Jackson, a professor of Earth System Science at Stanford University and director of the Global Carbon Project. Our homes and buildings are still being heated and agriculture is growing. “
The team tracked global methane emissions from 2000 to 2017, the last year that full data can be obtained. As a result, they found that global methane emissions had increased by 9 per cent since 2000, equivalent to an increase of 50 million tons per year. It’s like adding 350 million cars to the road, or twice as many as Germany or France, the researchers said.
During the study period, agriculture emitted about two-thirds of human methane, an increase of nearly 11 percent in 2017 compared with the 2000-2006 average, the team said. At the same time, emissions from the fossil fuel industry accounted for the bulk of the rest of the emissions, up nearly 15 per cent over the same period.
Methane emissions in Europe have actually declined over the past two decades, but methane emissions have increased dramatically in places such as Africa, the Middle East, South Asia and Oceania, with methane emissions increasing by between 10 and 15 million tons per year. At the same time, the United States increased by 4.5 million tons per year, mainly due to an increase in natural gas drilling operations.
“Gas use in the US and around the world is rising rapidly,” Jackson said. This offsets coal emissions from the electricity sector and reduces carbon dioxide emissions, but increases methane emissions in the sector. “
When it comes to reducing these emissions and avoiding dangerous levels of global warming, researchers see some possibilities. The use of drones and satellites to better monitor leaks from pipelines and wells may be part of the solution, and reducing the use of fossil fuels is a good one. In addition, feed supplements can also be used to reduce methane from cow burping.