The USGS estimates that 10 million tons of CO2 was released over the 9 hour eruption of Mount St. Helens in 1980. That's a pretty huge number, but passenger vehicles in the USA alone emit as much CO2 as a Mt St. Helens eruption happening somewhere in America every 3 days.
US Passenger Vehicle Emissions Comparable To 1980 Mt. St Helens Eruption Occurring Every 3 Days was originally posted on: PlanetSave. To read more from Planetsave, join thousands of others and subscribe to our free RSS feed, follow us on Facebook (also free), follow us on Twitter, or just visit our homepage.