EarthTalk

Dear EarthTalk: How are heating, cooling and electricity produced by geothermal energy? I don’t understand how it works...

Dear EarthTalk: A friend with many minor health problems recently switched to a diet of only raw plant foods and reports feeling much better. She also insists her new eating habits are better for the environment. Does this make sense or is the strange diet making her...

Dear EarthTalk: I pruned back an overgrown bush in my back yard last fall and now the soil around it is covered in dandelions and other weeds. Is there any way to get rid of these weeds without resorting to RoundUp and other chemical herbicides? — Max S., Seattle, ...

Dear EarthTalk: Can you enlighten on the environmental impact of the fashion industry? As I understand it, the industry overall is no friend to the environment...

Dear EarthTalk: What are the primary environmental concerns in the aftermath of the big earthquake in Haiti...

Dear EarthTalk: What is the current status of whales? How effective is the International Whaling Commission, and which countries are involved in illegal whaling...

Dear EarthTalk: I work for an office equipment company selling copiers, fax machines, computers and printers. Each year new models come out making old ones obsolete. As a result, we have loads of trade-ins with nowhere to go. What can we do with this old equipment...

Dear EarthTalk: I ride my bike to work along busy urban streets. Should I be worried about inhaling pollutants from vehicle emissions and other sources...

Dear EarthTalk: If the ice caps are melting, what is happening to the salt content of the oceans? And might this contribute to weather patterns or cause other environmental problems...

Dear EarthTalk: Is it true that environmental nonprofits have been hit hard by the economic downturn, and has this had an impact on their effectiveness? -- Bridget W./Bainbridge Island, Wash...