Africa and Asia have seen releases of the heat-trapping gas surge In 2017, human activities pumped about 364 million metric tons of methane into the atmosphere, compared with 324 million tons per year, on average, in the early 2000s. About half of that 12 percent increase was the result of expanding agriculture and landfills, while the other half arose from fossil fuels. Emissions from natural sources like wetlands, on the other hand, held relatively steady. https://www.sciencenews.org/article/agriculture-fossil-fuels-are-driving-record-high-methane-emissions