New images show where super-polluters are venting an invisible gas into the atmosphere

High above the earth, a cutting-edge satellite is passing around Earth 15 times per day. It is hunting for leaks of methane – an invisible, super-polluting gas that is dramatically warming the planet.

​ High above the earth, a cutting-edge satellite is passing around Earth 15 times per day. It is hunting for leaks of methane – an invisible, super-polluting gas that is dramatically warming the planet. Read More Breaking News, Latest News and Videos | CNN