Huffington Post: Rahm Emanuel, the former top aide in the White House, once advised a world struggling with a financial meltdown that it was not a good idea to let a serious crisis go to waste.
But this year, despite electoral momentum and tragedies by the handful, serious crises could go very much to waste for President Barack Obama. Could this mean the world will have to wait yet again for serious action to fight global warming? It depends.
The momentum to tackle a range of big issues -- including climate...