Chance, not ideology, drives political polarization

Ever-widening divisions between Democrats and Republicans are believed to reflect deeply rooted ideological differences, but a new study points to a radically different interpretation: it may be mostly a matter of luck.

9/11 tribute lights could be dangerous for birds, study says

To humans, the twin blue beams shining upward from lower Manhattan each Sept. 11 evoke solemn memories of the 2001 terrorist attacks. But to migrating birds, they're a potentially fatal attraction, according to a scientific ...

US urged to drop India WTO case on solar

Environmentalists Wednesday urged the United States to drop plans to haul India to the WTO to open its solar market, saying the action would hurt the fight against climate change.

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