glen hurowitz, is al gore right? >> he is right. unfortunately environmentalists got the sense that president obama was not fully fighting for the climate and for the urgent environmental needs that we have during the debate over climate legislation when he cut side deals with the oil industry, the coal industry, the nuclear industry without getting anything in return in terms of a commitment to support a cap on pollution or investment in clean-energy jobs. that was rumor that he was seeing other people but we really got confirmation when he embraced a broad agenda of drilling for oil offshore in the gulf, now looking to do in the very sensitive ecological areas in alaska. we saw it when he opened up huge areas for coal mining in wyoming it's about 30 times the amount of coal mining as clean energy that his installation has installed. he's also stalled clean air act that will have benefits and are aimed at protecting public health like mercury, smog and soot so there's been a real series of attacks on the environment coming from the

. >> ifill: daniel weiss, glen hurowitz and ken green, thank you all. >> woodruff: next, questioning some basic assumptions about public pensions. cities and states around the country are pushing to overhaul or make changes to pension plans. this week alone, there are big votes in atlanta and new jersey. tonight in his third story from rhode island, economics correspondent paul solman looks at the debate over how to calculate investment returns for that state's troubled pension fund. it's part of his ongoing reporting effort: "making sense of financial news." >> i'd like to call the meeting to order. >> reporter: rhode island treasurer gina raimondo, a democrat, presiding over the board that runs the state's $7 billion pension fund. >> we're still about a billion dollars off where we were before the market crashed when we were at $8.4 billion. >> reporter: the fund is now billions in the hole, in part because of past investment assumptions that proved too bullish. >> what we're trying to do is set the most probable scenario that we believe will come to play based on the data that we