Staten Island Advance: It’s a chilling snapshot: Stifling heat, driving rains and water levels rising by two feet or more. It’s all in the city’s future if we do not address and adapt to global warming, according to a report on climate change released yesterday by Mayor Michael Bloomberg. But at least one environmental expert believes Staten Island is at risk now. “If we had a hurricane this year, there would be a tremendous amount of damage because we have built and are continuing to build things in …