Global warming affects hurricane intensity: study

MIAMI (Reuters) - Global warming is affecting the intensity of Atlantic hurricanes, according to a new study by a university professor in Florida who says his research provides the first direct link between climate change and storm strength. BEIJING (Reuters) - China will rigorously enforce limits on industrial pollution as it seeks to rein in rampant pollution and tame frenetic economic growth, the nation's top environment official said. TORONTO (Reuters) - There is no vaccine against AIDS and none of the dozens of vaccines being tested is likely to completely protect people from the deadly virus, but the future looks bright for AIDS vaccine development, researchers said on Tuesday.