As the White House continues to promote energy efficiency as a key component to solving the energy crisis, politicians and business leaders consider commercial buildings prime candidates for efficiency savings. Clean Skies News’ Susan McGinnis takes a look at “green” building and tours a building that’s won top-level recognition for energy efficiency.

Clean Skies Sunday reports on the new reality for Senate Democrats. With only 59 Democratic votes, Tyler Suiters breaks down the future of energy legislation, a bill regulating the controversial act of hydro-fracking, and a push to nullify the EPA endangerment finding on greenhouse gases. Energy analyst Kevin Book discusses the possible merger between Exxon-Mobil and XTO. It’s been one month since the end of the Copenhagen talks, and Ned Helme, President of the Center for Clean Air Policy discusses what’s been done since then.And it’s an electrifying ride at the North American International Auto Show – we’ll show you the newest, greenest cars about to hit the road.

Secretary of State Clinton tries to break the impasse at the Copenhagen climate summit by offering $100 billion a year for a decade to developing nations. Jeffrey Ball reports on how the offer was received in Copenhagen.

On the eve of the inauguration, attendees of the Green Inaugural Ball and the Arkansas Inaugural Gala in Washington, D.C. — including former President Bill Clinton — share their hopes for Barack Obama’s first 100 days in office.

Google CEO Eric Schmidt talks about Silicon Valley’s search for smart ways to rein in fossil-fuel use at the ECO:nomics conference.

At the ECO:nomics conference, Deutsche Bank’s Caio Koch-Weser talks with WSJ’s Deputy Managing Editor Alan Murray about how green initiatives might get financed in this economy.

United Nations, New York, 14 May 2009: The United Nations is leading a powerful new campaign to encourage governments to seal the deal on a fair, balanced and effective agreement on climate change