Exploding craters and overflowing landfills are unexpected sources of methane

Exploding craters and overflowing landfills are unexpected sources of methane Getty Images The craters that periodically appear in northern Siberia are thought to be linked to climate change A new methane-monitoring satellite is turning a powerful eye on methane from oil and gas, helping spot rogue emissions. Getty Images One Californian cattle feedlot produces more methane than the biggest oil and gas fields in the state Cows The methane emitted in cow burps often makes headlines, but despite being a well-known source of methane it has so far proved tricky to reduce. Getty Images Waterlogged wetlands are releasing methane into the atmosphere more rapidly Wetlands Getty Images Organic matter rotting in landfill sites emits large amounts of methane Landfill sites Waste is the third large source of methane globally, after agriculture and energy, according to the International Energy Agency. Getty Images Wildfires are a major source of methane pollutants Wildfires As wildfires grow in frequency and intensity around the globe, tracking their greenhouse gas emissions – including methane – is becoming ever more important.