They system will save about 42 tons of carbon dioxide per year and $ 70,000 in electricity costs over the 20 - year term of the lease. (interfaithpowerandlight.org)
This would produce about 13 million tonnes of carbon dioxide per year. (planet3.org)
Operations at AAAS release much less carbon dioxide into the atmosphere — 1518 fewer tons of atmospheric carbon dioxide per year as of 2008 — compared with the industry standard for a similar building, according to data available through the U.S. Environmental Protection Agency's Energy Star program. (aaas.org)