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Science, Tech & Environment

Rising carbon dioxide levels may reduce the nutritional value of important foods

Rising levels of atmospheric CO2 are already having significant impacts on climate, weather patterns and water supplies. Scientists expect increased carbon dioxide levels will also affect agriculture across the world, in ways we can't predict. The results of a recent study suggest that one of those affects could be quite alarming.

Global Scan

Is this the space vehicle that will be NASA's alternative to Russia's 'taxi service' to orbit?

As US-Russia relations deteriorate, NASA is picking up the pace on finding a way to get to the International Space Station without relying on Russian rockets. Three private companies could get the nod from NASA this week. Meanwhile, ISIS is emerging as a more dangerous global threat, with evidence that it is researching weapons of mass destruction and possibly targeting the pope. We have those stories and more in today's Global Scan.

Lifestyle & Belief

A tidier, more polite lobster roll ... courtesy of Canada

The lobster roll is a summertime favorite in New England. Fresh lobster, a little mayo, some dill and a splash of lemon juice. All mixed together, and then slapped on a hot dog bun. But up north in New Brunswick, you can find some delicious Canadian variations on the lobster roll. Leave it to Chicago-based food writer Steve Dolinsky to try them all.