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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

MIT researchers create a robo-cheetah that runs and jumps off-leash

It's not much of a looker when it comes to feline curves, but MIT's robotic cheetah sure can run. It is novel in both its motors and the math that calculates how hard it springs across uneven terrain. In Scotland, bankers are preparing for the worst — a run on banks if Scots vote "yes" to separate from Britain on Thursday. And we look at the sexy brewing device for coffee that was a favorite of James Bond and is coming back into fashion. All that in today's Global Scan.

Global Scan

ISIS has a new hand sign — and it means far more than ‘We’re #1’

The Islamic militants known as ISIS have shown savvy in social media and in picking their symbols. We explore the deeper meaning behind their index finger salute — and their black-and-white flag. And an author shows a side of Iran's capital that you might not have expected, from sex to drugs to skinny jeans. And are you tired of being cramped in economy class? You're not alone. All that in today's Global Scan.

Conflict & Justice

Does a 'just' war really even exist?

The Catholic Church has been involved with wars practically since its beginning, though certainly less in recent centuries. But the pope's recent comments about "just wars" — in the context of international intervention in Iraq and Syria — have raised questions about whether his "just war" actually exists.

Global Politics

Why vote for Scotland's independence? A Scottish teen explains his reasons

Sixteen-year-old James Kane from Oban, Scotland, was undecided until this week on whether to vote for independence for Scotland. He's not your usual teen. He interviewed leaders of many of Scotland's political parties before making up his mind. But he is typical in that teens from 16 on up will get to vote in this special referendum on the country's future.

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