Research News

As the level of carbon dioxide in the air rises because of human activity, scientists are trying to pin down how plants are affected. There's evidence that it's changing many important plants we eat.

A study by the Union of Concerned Scientists examined how real estate values were affected in 23 coastal states. Florida has the most to lose, according to the research.

The jury's been out on whether low blood levels of vitamin D increase the risk of colorectal cancer. Researchers say a new review involving more than 12,000 people strongly suggests the answer is yes.

You can help prevent suicide, researchers say, by knowing the signs and reaching out. More boys and men in the U.S. take their own lives than women and girls, but that difference has narrowed.

Depression is a possible side effect of 200 medications. Now, a new study finds people who take these drugs are, in fact, more likely to be depressed. The more drugs you take, the higher the risk.

Forecasters have gotten better giving advance notice of when tornadoes might strike. Now, there's a new technology that may help researchers even more: listening for the sounds of a tornado that humans can't hear.

The clicker became a popular tool for dog training in the 1980s. It has also caught on with humans — helping people to become better dancers, fishermen, golfers, and now, surgeons.