If four years is a lifetime in politics, it’s an eternity in climate change politics. Events in Washington this week might make climate policy watchers wonder if 2007 really happened.

At issue is the decision by American Electric Power to put its plans for carbon capture and storage on hold, due to the weak economy and the lack of a U.S. plan to limit emissions of climate-warming carbon dioxide. Read the Reuters story about it here.

Carbon capture and storage, or CCS for short, has been promoted as a way to make electricity from domestic coal without unduly raising the level of carbon in the atmosphere. Instead of sending the carbon dioxide that results from burning coal up a smokestack and into the air, the plan was to bury it underground. But that costs money and requires regulatory guarantees, and neither are imminent in the United States. Legislation to curb greenhouse gas emissions bogged down on Capitol Hill a year ago and has not been re-introduced.

Sarah Forbes of World Resources Institute called AEP’s decision “a surprise, but not a shock.”

“Given that U.S. climate legislation stalled last summer, companies have less incentive to move forward with CCS, which has proven difficult to advance at scale,” Forbes said in a statement.