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  • Itron Is Meter Made Tuesday, 22 Apr 2008 | 6:57 PM ET

    Water metering and energy conservation make up a big business that's getting bigger. And this company is leading the way.

  • Cramer: Nabors Is Back Tuesday, 22 Apr 2008 | 6:34 PM ET

    The CEO of this drilling company once honestly told Cramer that the time wasn't right to buy his stock. But now he thinks it's ready.

  • Oil Prices Must Stay High to Have Enough Supply Tuesday, 22 Apr 2008 | 2:56 PM ET

    Energy producers cannot halt a rally that has driven oil to nearly $120 a barrel and the world might have to live with even higher prices if it wants supplies for the future, exporters said on Tuesday.

  • When Bad Is Still Good Monday, 21 Apr 2008 | 6:21 PM ET

    Even the worst performers from Cramer's original green portfolio still beat the S&P. Of them, he would only sell one.

  • Green Is Money Monday, 21 Apr 2008 | 6:21 PM ET

    Find out which of Cramer's original green plays he'd still be buying.

  • Nortel CEO: Green Tech Good For Shareholders Monday, 21 Apr 2008 | 3:31 PM ET
    Nortel Networks President and CEO Mike Zafirovski (Adrian Wyld, AP)

    Green Week technology: Mike Zafirovski, chief executive of Nortel Networks, says his firm is playing a key role in the search for cost-effective corporate environmentalism. In an interview with CNBC, Zafirovski described how Nortel is helping corporate customers save energy -- and increasing value for Nortel's own shareholders.

  • OPEC President: No Need to Raise Oil Production Sunday, 20 Apr 2008 | 11:16 AM ET
    Gas Pump

    The Organization of Petroleum Exporting Countries sees no need to raise oil production to counter high oil prices, the OPEC President said on Sunday.

  • Barry Sternlicht Sees Luxury In Green Friday, 18 Apr 2008 | 2:42 PM ET

    The founder of the Starwood hotel empire is launching a chain of environmentally friendly, luxury hotels and condominiums in 15 cities. "We're going to try something and see if it works," says Sternlicht.

  • Water, Water Everywhere for Dow Chemical Friday, 18 Apr 2008 | 2:31 PM ET

    Water -- often overlooked in the green debate -- is a key part of the company's 2015 sustainability goals and a promising profit center in emerging markets.

  • A Weedy Contribution to the Biofuel Movement Friday, 18 Apr 2008 | 1:53 PM ET

    As farmers divert crops to the production of ethanol and biodiesel, food prices rise. Enter Jatropha Curcas, a wild poisonous shrub that grows in poor soil conditions, needs little water and is pest resistant but is easily converted into high quality biodiesel.

  • Green Stocks: Bubble Trouble Time? Friday, 18 Apr 2008 | 1:52 PM ET

    Green energy stocks have slumped since their peak in November and still look overvalued, since the price of oil, although painfully high, still hasn't risen enough to justify investors' hopes that renewable energy sources will steal the limelight.

  • Stern Warning: Cost of Tackling Climate Change Rises Friday, 18 Apr 2008 | 1:50 PM ET

    Curbing greenhouse gases has become an emergency, as global warming advances faster than previously thought, Lord Nicholas Stern, the author of the 'Stern Review' on climate change and the economy, tells CNBC.com.

  • There's Electricity In That Garbage Friday, 18 Apr 2008 | 1:47 PM ET

    In the altered calculus of green economics, what used to be garbage is now a valuable fuel, which can be used – or really, reused - to generate electricity.

  • EU Should Rethink Biofuels Target: Lord Stern Wednesday, 16 Apr 2008 | 2:51 PM ET

    The author of "the Stern Review" on the economic impact of climate change, Lord Nicholas Stern, talks to CNBC Europe about biofuels and climate change.

  • First on Fast Money: New ETF Tuesday, 15 Apr 2008 | 6:37 PM ET

    In a first on Fast Money interview, find out about a new ETF that began trading Tuesday.

  • Solar panels are shown with the Frog's Leap winery in the background in Rutherford, Calif., Tuesday, Sept. 18, 2007. San Francisco-based Sunlight Electric has helped more than a dozen wineries, including Frog's Leap, to go solar. The company estimates there are 28 systems in Napa County and another 14 in next-door Sonoma County. (AP Photo/Eric Risberg)

    Storing heat - rather than electricity - might be the secret to  cost-effective solar power.

  • Fuel Choices, Food Crises and Finger-Pointing Tuesday, 15 Apr 2008 | 10:24 AM ET

    Higher worldwide prices for staple foods are leading many to rexamine whether biofuels are a viable long-term substiute for oil.

  • Investment Bucks for the 'Valley of Death' Monday, 14 Apr 2008 | 1:37 PM ET
    Solar panels are shown with the Frog's Leap winery in the background in Rutherford, Calif., Tuesday, Sept. 18, 2007. San Francisco-based Sunlight Electric has helped more than a dozen wineries, including Frog's Leap, to go solar. The company estimates there are 28 systems in Napa County and another 14 in next-door Sonoma County. (AP Photo/Eric Risberg)

    Unproven technologies have always made investors skittish, but there are some venture capitalists and private equity firms gearing up to fill the funding gap.

  • Mad Mail: When Will Home Prices Bottom? Wednesday, 9 Apr 2008 | 7:51 PM ET

    Plus, Cramer makes the call on ConEd, First Solar and more

  • What the CEOs Are Saying Wednesday, 9 Apr 2008 | 10:08 AM ET

    Find out what chief executives are saying about their businesses and the economy on CNBC Europe.

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