What’s causing global spike in methane emissions to the atmosphere?

Methane gas is the most important greenhouse gas that may affect climate change after carbon dioxide. Livestock production is a significant source of methane gas emissions and climate effects worldwide. However, the impact of methane emissions from dairy and beef production in the U.S. is far more limited. According to EPA's most recent summaries, methane emissions from livestock production in the U.S. are about 2.5 percent of the total greenhouse gas emissions. About 8 percent of total greenhouse gas emissions in the U.S. come from agriculture, and the other 92 percent are from production and use of fossil fuel. Read more.