This rate of substitution — the current adoption [2] of alternative cement — avoids about 79 metric tons of carbon dioxide emissions per year. (drawdown.org)
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)
Considering that electricity production generates more than 1.9 billion metric tons of carbon dioxide emissions a year, a simple flick of the switch is a good start. (marthastewart.com)