The government of Canada is gearing up for another public education push linked to radon, a potentially harmful gas lurking in high concentrations in close to 1 in 10 Canadian homes.

A state of emergency was declared in the US state of California over a massive natural gas leak that has been spewing methane and other gases into a Los Angeles neighborhood for months, sickening residents and forcing thousands to evacuate. This gas leak is believed to be the largest since the 2010 BP oil spill. Deepak Sharma‘s animation explains how fixing this leak isn’t an easy task — it goes into depth as to what has been done and what remains to be done.