Reuters
Environment
 - Obama says U.S. 'will do more' to fight climate change
 - "Hazardous" air, murky skies in Singapore from Indonesian fires
 - Storm Barry heads for Mexico Gulf coast oil installations
 - Arizona wildfire threatens hundreds of homes, California blaze wanes
 - China threatens death penalty for serious polluters
 - New indictments for ex-BP executive, engineer over Gulf spill
 - European parliament committee backs ban on planet-warming F-gases
 - Time to stop arguing about climate change, World Bank says
 - India on 'war footing' as monsoon floods kill scores
 - Beetles, housefly larvae open new frontier in animal feed sector
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