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Drones From Iran Actually Built to Save People - From Drowning

Another example of how a drone can be a lifesaver, rather than a killer, comes from a group of young engineers in Iran whose robotics expertise has been put to work developing an alternative to human lifeguards along the Caspian Sea coast, where more than a thousand people drown every year. Their drone can speedily fly to swimmers in trouble and drop three life preservers.

Coffee Lowers Risk of Prostate Cancer, Harvard Study Says

A new study says men who are heavy coffee drinkers are at a much lower risk for prostate cancer. Harvard scientists followed 47,911 men for two decades and asked how much coffee they were drinking. The researchers found that those who consumed six or more cups a day -- with or without caffeine -- were almost 20% less likely to develop prostate cancer. The heavy coffee drinkers were 60% less likely to get the lethal form of the disease. (NY Times)

40 Victories Since the First Earth Day: 40th Anniversary Timeline

Since the first Earth Day 40 years ago, America has become a cleaner, safer, more beautiful place with less pollution, more pristine rivers, fewer people littering, and many endangered species rescued from the brink. Here are 40 successes in 40 years since the first Earth Day -- an anniversary timeline.

Adult Fears Are Encouraging Obesity in Kids

Are kids today becoming sedentary and obese because of a heightened desire for video games, or because their inborn desire to run free in the neighborhood has been squashed by overly fearful parents? Simply letting kids "off-leash" more often, freeing them up to (literally) run around on their own without constant direct adult supervision would be an excellent way to encourage exercise.