Why is there so much methane in the air? We may finally know

While most countries focus on reducing carbon dioxide in the battle to slow the rate of global climate change, scientists from the Jet Propulsion Laboratory in La Cañada Flintridge point to methane, a sometimes overlooked greenhouse gas that traps heat in the Earth’s upper atmosphere and also contributes to ground-level smog.
Previous studies show massive annual increases in atmospheric methane since 2006, including the second-largest hot spot in the nation above the farm-rich Centr