February 1, 2019, 11:06 p.m. by Bryan Nelson
Sodium ion batteries are cheaper and charge faster, but there are a few hurdles to their rise.
Electrical device plugs directly into trees for power
September 10, 2009, 9:32 a.m. by Bryan Nelson
Researchers have discovered that there's enough power in living trees to run an electric circuit.
Video: Forests popular dumping ground for old TVs
June 23, 2009, 10:17 a.m.
A few miles from Washington's Interstate 90 is a pristine waterfall. At the base sit two old analog TVs and a computer monitor.
Mother Nature's greatest hits: 20 songs with an environmental side
April 13, 2009, 5:59 a.m. by Peter Dykstra
Peter Dykstra counts down his top 20 eco-songs. Ozzy Osbourne, Metallica, and a few other strange bands make the cut.
Should I unplug my appliances and, if so, will I save money on my electric bill?
4 ways to charge a phone when the power's out
Titanium fangs? The technology behind Navy SEAL dogs
7 signs we are too dependent on technology
DIY fridge uses almost no energy
12 tips for better macro photography on your phone