[Greenbuilding] low flow shower heads

Reuben Deumling 9watts at gmail.com
Wed May 18 13:15:46 PDT 2011


"Our studies show that globally, volcanoes on land and under the sea release
a total of about 200 million tonnes of CO2 annually.

This seems like a huge amount of CO2, but a visit to the U.S. Department of
Energy's Carbon Dioxide Information Analysis Center (CDIAC) website (
http://cdiac.ornl.gov/) helps anyone armed with a handheld calculator and a
high school chemistry text put the volcanic CO2 tally into perspective.
Because while 200 million tonnes of CO2 is large, the global fossil
fuel CO2emissions for 2003 tipped the scales at 26.8 billion tonnes.
Thus, not only
does volcanic CO2 not dwarf that of human activity, it actually comprises
less than 1 percent of that value."
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