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Chinese President Xi Jinping and President Obama agreed on at least one thing this week: They need to coordinate action to lower greenhouse gas emissions to combat climate change.

A psychologist says there could be a simple way to make calorie-packed foods like french fries or ice cream seem unappealing, even a bit disgusting. Others are less sure.

'Indian cowboy': Though it may sound like an oxymoron, Native Americans have been riding horses and roping cattle for centuries in the Sunshine State.

Some scientists suggest calling the era we live in the Anthropocene, to denote the time when humans came to dominate Earth's fate. But did it start with farming, the atom bomb or another event?

It's all in the timing. Biologists haven't been able to breed embryos of the rare, pillar coral in the lab because it's been tough to catch the creatures in the act.

Researchers are developing technology to control the movement of cockroaches. Strapped with electrodes and sensors, these insects we often loathe could be used for disaster relief or surveillance.

Cruz has not been the buzz candidate so far in the GOP's 2016 discussions — nor the media's. In fact, he has seemed at times a bit of a faded rose, a skyrocket that has spent much of its sparkle.

Scotland's referendum on independence has implications beyond the borders of the United Kingdom. We take a look at several other regions with breakaway movements.

The U.S. and other nations have imposed economic sanctions on Iran for its nuclear program. Steve Inskeep talks to Juan Zarate, a senior adviser at the Center for Strategic and International Studies.

An experiment in Chicago randomly assigned train and bus riders to either talk to the stranger next to them or commute quietly. The result? Even for introverts, silence leaves you sadder.