Ford, BMW and others sign binding emissions agreement with CaliforniaThey've committed to building cars that outperform federal fuel efficiency standards.By K. Holt, 08.18.2020
The rise of cloud computing has had a smaller climate impact than fearedComputing output jumped 6 times while power consumption rose only 6 percent. By S. Dent, 02.28.2020
Ford, Honda and others agree to California's voluntary emission rulesIt's less than the Obama-era goals, but it's still something. By D. Cooper, 07.26.2019
EPA wants to roll back Obama-era auto efficiency guidelinesIt’s developing new rules that are less stringent than current standards.By M. Locklear, 04.02.2018
Mazda's engine breakthrough promises big fuel efficiency gainsMazda says it's nailed the compression-ignition gasoline engine.By R. England, 08.08.2017
The US' TV energy ratings don't reflect the real worldAdvocacy group research shows that even new TVs use more power than ratings say they do.By J. Fingas, 09.25.2016
Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiencyBy A. Santos, 08.28.2012
Scientists develop flush-efficient toilet system that can turn waste into energy, sort before it recyclesBy A. Santos, 06.29.2012
Calxeda benchmarks claim that its server chips are 15 times more power efficient than Intel'sBy D. Cooper, 06.21.2012
Autocar takes Gordon Murray's T.25 and T.27 city cars for a spin, gives us its impressionsBy A. Verrecchio, 05.23.2012
Buying an iPad 2? Here's the rarer, more efficient specimen you need to (somehow) track downBy S. Sakr, 05.04.2012