SunPower Turns to Gamification to Engage with Customers

Companies worried about engaging customers may learn a thing or two from SunPower, whose new online contest has boosted its Facebook community by nearly 70 percent. Read More

A Closer Look at the Green City Index

Why did some cities nail top ratings in Siemens' new Green City Index for North America, while others tanked and still others weren't counted at all? NRDC's Kaid Benfield takes a deep dive into the scores. Read More

San Francisco Named North America's Greenest City

San Francisco bested contenders that included Vancouver, New York, Seattle, Denver and Boston in a study conducted by the Economist Intelligence Unit and commissioned by Siemens. Read More

What's Behind the Big Sustainability Push at Unilever

The VP of sustainability at the consumer-goods giant talks about the power of collaboration, the difficulty of changing individuals' behavior, and why Americans in the shower is one of the biggest environmental hurdles Unilever faces. Read More

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Building a 21st Century Communications Economy

How Information Communications Technology (ICT) companies have the potential to help stimulate a high growth, low environmental impact economy. Read More

How M&S Found Sustainability & Profits in a Carbon-Neutral Bra

 No company approaches sustainability more comprehensively — or more creatively — than the British retailer Marks & Spencer. Read More

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State of the Voluntary Carbon Markets 2011

Despite a slowdown in policy-driven trades, voluntary offsets are growing faster than ever. Read More

How Peppermill Makes the Most of Its Geological Blessings

The resort-casino in Reno, Nev., has invested nearly $10 million in switching over to geothermal heating for its 2 million-square-foot complex -- and the ROI means they're looking to dig even deeper into renewable energy. Read More

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Climate Action in Megacities: C40 Cities Baseline and Opportunities

What are the world's largest cities doing to combat climate change? Read More

How Climate Change is Already Affecting the World's Major Cities

More heat waves and stronger storms are among the climate change risks being experienced by city governments across the world. Read More