Dear EarthTalk: Is it true that only a handful of outdated coal-burning power plants generate a sizable amount of the mercury pollution generated in the United States? If so, is anything being done to clean these sites up or shut them down?
Dear EarthTalk: What will be the effect of all the flooding along the Mississippi River for organic farmers, given all the pollutants in the water? When they recover, can they still certify their products as organic?
Dear EarthTalk: Can you explain the 2010 Safe Cosmetics Act? What does it purport to do and has it been signed into law?
Dear EarthTalk: What is “tar sands oil” and what is the controversy over possibly building a pipeline for it from Canada into the United States?
Dear EarthTalk: How are wild dolphins faring on the high seas? Recent reports of dolphin deaths in the Gulf of Mexico may well be due to last year’s BP oil spill, but I imagine there are many threats to dolphins from pollution, human overfishing and other causes.
Dear EarthTalk: With all the talk of the need for safe, renewable energy sources, isn’t the elephant in the room really that we should use far less energy than we do? Wouldn’t more rules about conservation (like not leaving commercial building lights on all night) make the challenges easier?
Dear Earth Talk: How healthy is soy? I heard that, despite its healthy image, most soy is grown using chemicals like other crops and is even being genetically modified.
Dear EarthTalk: Our community is talking of culling local deer herd numbers. Frankly I think it’s the people who are overpopulated, crowding out every last inch of habitat. What happens when we finally do develop everything? Pow! There goes the last doe?
Dear EarthTalk: I heard that timber thefts are increasing across the country. Why would people steal timber and is it a particular kind for a particular use?
Dear EarthTalk: Not long ago we were reading a lot about hydrogen’s role in a clean energy future, with cars transitioning from gasoline-powered engines to hydrogen-powered fuel cells. Where does hydrogen fit now in the mix with electric cars now coming on so strong?
