The Center for Science in the Public Interest found compelling evidence that ingestion of artificial food dyes can contribute to hyperactivity, restlessness and attention problems in some children, especially those with ADHD.
One out of three counties across the contiguous U.S., says a recent study commissioned by the Natural Resources Defense Council, should brace for water shortages by mid-century as a result of human induced climate change.
Dear EarthTalk: What’s the story with Echinacea? Many herb teas contain it, and many people swear by it as a cold remedy. But I’ve also seen headlines saying that the herb has no medicinal value whatsoever. Can you set the record straight? -- Arlene Hixson, Portland, ME
Dear EarthTalk: There are a number of companies out there now doing “energy audits” for the home, after which they try to sell you attic insulation and other products and services. Is this just a scam or would it be wise for me to look into this? -- Bill Richards., New York, NY
Dear EarthTalk: What do I need to know about the new U.S. energy efficiency standards for light bulbs that take effect in January 2012? Will certain bulbs be unavailable? And am I supposed to switch out my older inefficient bulbs with newer efficient ones? -- Melissa McCarthy, Aptos, CA
Dear EarthTalk: I always hear about hair products and sprays that claim to be natural and organic based. What are some hair products that can be purchased that are legit and cause no harm to the environment? -- Penny Siegel, Milwaukee, WI
Dear EarthTalk: Is it true that gas furnaces cost less to run and burn cleaner than their oil counterparts? If I make the switch, how long should I expect it to take for me to pay back my initial investment? And are there any greener options I should consider? -- Veronica Austin, Boston, MA
David Pimentel of Cornell University’s College of Agriculture and Life Sciences says that the grain currently fed to some seven billion livestock in the United States could feed nearly 800 million people directly.
Woody Tasch, socially conscious investing pioneer, founder of the Slow Money movement, and author of the book, Inquiries into the Nature of Slow Money: Investing as if Food, Farms and Fertility Mattered.
Dear EarthTalk: Thorium is a naturally occurring element that is supposedly more available, more efficient and safer to use than uranium for generating nuclear energy. Is this true and, if so, why haven’t we made the switch? -- Jane Westermann, Austin, TX