Three debates down and one to go, and climate change has still not been addressed by the presidential candidates and their running mates in face-to-face confrontations. The punchy debate last night between President Obama and Mitt Romney opened with testy exchanges on energy in which the president accused his opponent of ignoring renewable power. Romney, in turn, attacked Obama for presiding over rising gasoline prices and faking support for fossil fuels. But with the election inside of three weeks away, the town hall-style debate at Hofstra University on New York's Long Island firmly established climate change as an outcast issue in the race. Go to story #1