Fox News: Some say there’s a whiff of fresh air in Washington. But others say it’s the same hot air as always . . . only there’s more of it than ever. As President Obama continues to push for a market-based cap on greenhouse gas emissions, an unprecedented number of powerful lobbyists and interest groups are preparing to leave their mark on federal policy. In the five years since Congress last voted on climate change, there’s been a 300 percent increase in the number of climate …