Dear EarthTalk: What’s the story with LED light bulbs that are reputed to be even more energy-efficient than compact fluorescents? — Toby Eskridge, Little Rock, AR
Perhaps the ultimate “alternative to the alternative,” the LED (light-emitting diode) light bulb may well dethrone the compact fluorescent (CFL) as king of the green lighting choices. But it has [...]

Dear EarthTalk: What is “community based tourism” and how does it purport to safeguard pristine places? — Erin O’Neill, Tukwila, WA 
Community based tourism refers to situations in which local people-usually those that are poor or economically marginalized in very rural parts of the world-open up their homes and communities to visitors seeking sustainably achieved cultural, [...]