LA Times: Environmentalists who provided money, zeal and manpower to Democrats in 2008 are demoralized this campaign cycle, further fraying the coalition that sent Barack Obama to the White House and gave the party majorities in both houses of Congress. Meanwhile, energy and business interests have ramped up spending by tens of millions of dollars, hoping in part to halt climate change legislation promised by Obama but stalled in the Senate. Key donors, citing the fate of the global …