And Now for Some Good News About Climate Change

Small things like energy efficient lightbulbs and big ones—like solar panels and light rail transportation—are making a difference. Australian author Tim Flannery counsels cautious optimism by showing how the millions of small actions taken by individuals are driving down oil consumption and points out how new “Third Way” carbon-capture technologies promise to reduce emissions and create massive economic opportunities.

A “Fair and Ambitious” Pledge? Not Quite

A new study by researchers at MIT and the Center for International Climate and Environmental Research in Oslo, Norway, has found that pledges by the three largest emitters — the United States, the European Union, and China — leave very little room for the rest of the world to emit.

Will Tidal and Wave Energy Ever Live Up to Their Potential?

As solar and wind power grow, another renewable energy source with vast potential — the power of tides and waves — continues to lag far behind. But progress is now being made as governments and the private sector step up efforts to bring marine energy into the mainstream.