President Obama’s economic stimulus program might be considered green, but it’s still got a big streak of gray. The $785 billion spending bill that Obama signed Tuesday, shortly after he toured the sparkling solar-paneled roof of the Denver Museum, will save or create 3.5 million jobs over the next two years, according to the White House. Environmental groups, happy about the sharp departure from Bush administration policies, say up to 1.5 million or 40 percent of the jobs created by the unprecedented legislation will be green–meaning they will contribute to decreasing energy consumption, lowering oil demand, and switching to renewable sources.