Keep On PluggingShould you run your laptop off battery power or use a charger?
War on the WorldHow does warfare affect the environment?
Green ScreenIs it better for the environment to watch TV via satellite, cable, or the Internet?
Two Wheels vs. FourHow far do I have to ride my bike to pay back its carbon footprint?
The Green Lantern on Green LanternIs it more eco-friendly to see movies in a theater or on DVD?
How Green Is My Wintergreen?Assessing the environmental impact of chewing gum.
The Elephant in the RoomHow can you tell if a zoo takes good care of its animals?
Wear Green, Drink GreenlyThe eco-guide to responsible drinking.
Ethanol, Nitrogen, MTBE, LeadAre gasoline additives getting any better for the environment?
Disoriented in the Dairy AisleShould I buy milk in glass, plastic, or cardboard containers?
He Loves Earth, He Loves Earth NotAre fake flowers better for the planet than fresh ones?
Reproduce, Recycle, ReuseAre secondhand car seats safe? And other eco-riddles for expecting parents.
Will The Gulf Ever Be Oil-Free?No. But bacteria ate most of BP's spilled oil months ago.
Pass on GrassIs grass-fed beef better for the environment?
Vote GreenWhat’s the most environmental friendly way to cast your ballot?
Good for You, Good for the Planet?Is healthy food always better for the environment?
Green Your Notes!Is taking notes on a notepad or an iPad more environmentally responsible?
Obama's Environmental Report CardIs America greener than it was four years ago?
Are Tornadoes Environmental Disasters?Not compared to hurricanes.
Global CoolingIs central air conditioning more efficient than window units?
High on EnvironmentalismCan hemp clothing save the planet?
Vinho VerdeIs organic wine really better for the environment?
So Many Species, So Little MoneyWhich endangered species should I save?
Styrofoam-ing at the MouthWhy Republicans' polystyrene cups trump reusable mugs.
Go West, Garbage Can!Are we running out of room for our garbage?
The Best Investment Under the Sun?Should I get a solar water heater? Or solar electric panels?
A Glass of Seawater. Hold the Salt. How eco-friendly is desalination?
Trimming Your Carbon FootprintWhat's the greenest way to shave?
China vs. IndiaWho's the Greener Emerging Power?