Causes pixabay A greener way to stop the current: Phasing out a climate super-menace in the grid Sulfur hexaflouride, or SF6, is the most potent greenhouse gas on the planet, lingering for thousands of years. One pound of the stuff is the same as releasing 22,800 pounds of carbon dioxide into the air.
Solutions www.bbc.com The big science and environment stories of 2019 We look back at some of the major stories of the year in science and the environment.
