Reuters: Any of the top three US presidential hopefuls would be better than President George W. Bush at combating climate change, European Commission President Jose Manuel Barroso said on Monday. "The trend is on the right side, but there is a lot of work to do," Barroso said of the outlook for US policy on fighting global warming during a seminar on climate change and energy security in the Norwegian capital. Democratic presidential hopefuls Barack Obama and Hillary Clinton …