The good news, research has suggested, is that there is far less methane than CO2 in the atmosphere to worry about. (climatenewsnetwork.net)
In an expedition to the same region four years later, she had the chance to compare the measurements taken at different times, and found significantly less methane in the water samples. (sciencedaily.com)
They observed that cows whose feed contained the powder produced 30 percent less methane and gained weight compared to cows who ate typical diets. (treehugger.com)