The huge carbon footprint of cement (and what we can do about it)
January 27, 2016, 8:15 a.m. by Sami Grover
Cement manufacturing contributes 5 percent of global carbon emissions. But what if it could become part of the solution?
Carbon dioxide could soon be transformed back into liquid fuel
December 28, 2015, 4:06 p.m. by Bryan Nelson
What if we could turn our fuel emissions back into fuel?
U.S. Christmas decorations use more energy than many nations do in a year
December 28, 2015, 6:13 a.m. by Bryan Nelson
Christmas is the season for many things, including a ridiculous carbon footprint.
All our gains in energy efficiency have been wiped out by increases in house size
November 18, 2015, 6:11 a.m. by Lloyd Alter
There are a number of reasons our houses are getting bigger, and it's a real problem.