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

First Take: BPA Strikes Again, Has VW Turned to the Dark Side?

The latest BPA study finds it causes male deer mice to act like females; Greenpeace accuses VW of turning to the Dark Side because of its environmental and lobbying record; and GM pledges to find a way to achieve 56.2 mpg. 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

Turning a Rooftop Garden into a Supermarket's Supply Chain

BrightFarms, a New York City-based startup, thinks it has the solution to cross-country grocery supply routes, right above our heads. .adslot-overlay {position: absolute; font-family: arial, sans-serif; background-color: rgba(0,0,0,0.65); border: 2px solid rgba(0,0,0,0.65); color: white !important; margin: 0; z-index: 2147483647; text-decoration: none; box-sizing: border-box; text-align: left;}.adslot-overlay-iframed {top: 0; left: 0; right: 0; bottom: 0;}.slotname {position: absolute; top: 0; left: 0; right: 0; font-size: 13px; font-weight: bold; padding: 3px 0 3px 6px; vertical-align: middle; background-color: rgba(0,0,0,0.45); text-overflow: ellipsis; white-space: nowrap; overflow: hidden;}.slotname span {text-align: left; text-decoration: none; text-transform: capitalize;}.revenue {position: absolute; bottom: 0; left: 0; right: 0; font-size: 11px; padding: 3px 0 3px 6px; vertial-align: middle; text-align: left; background-color: rgba(0,0,0,0.45); font-weight: bold; text-overflow: ellipsis; overflow: hidden; white-space: nowrap;}.revenue .name {color: #ccc;}.revenue .horizontal .metric {display: inline-block; padding-right: 1.5em;}.revenue .horizontal .name {padding-right: 0.5em;}.revenue .vertical .metric {display: block; line-height: 1.5em; margin-bottom: 0.5em;}.revenue .vertical .name, .revenue .vertical .value {display: block;}.revenue .square .metric, .revenue .button .metric {display: table-row;}.revenue .square .metric {line-height: 1.5em;}.revenue .square .name, .revenue .square .value, .revenue .button .value {display: table-cell;}.revenue .square .name {padding-right: 1.5em;}.revenue .button .name {display: block; margin-right: 0.5em; width: 1em; overflow: hidden; text-overflow: clip;}.revenue .button .name:first-letter {margin-right: 1.5em;}a.adslot-overlay:hover {border: 2px solid rgba(58,106,173,0.9);}a.adslot-overlay:hover .slotname {border-bottom: 1px solid rgba(81,132,210,0.9); background-color: rgba(58,106,173,0.9);}a.adslot-overlay:hover .revenue {border-top: 1px solid rgba(81,132,210,0.9); background-color: rgba(58,106,173,0.9);}div.adslot-overlay:hover {cursor: not-allowed; border: 2px solid rgba(64,64,64,0.9);}div.adslot-overlay:hover .slotname {border-bottom: 1px solid rgba(128,128,128,0.9); background-color: rgba(64,64,64,0.9);}div.adslot-overlay:hover .revenue {border-top: 1px solid rgba(128,128,128,0.9); background-color: rgba(64,64,64,0.9);} Read More

US Postal Service Delivers a Smaller Carbon Footprint

The U.S. Postal Service cut its greenhouse gas emissions by 8 percent since 2008, building on longstanding efforts to reduce its environmental impacts. Read More

How Walmart Became a Force for Nature

A new book offers the first in-depth look at the many overlapping forces that drove the green makeover of Walmart -- and what that makeover means for the world. Read More

Japan Leads World in Harnessing IT for Sustainability

A new ranking of green IT leadership finds Japan far out in front in its successes to use IT to reduce its carbon footprint. Denmark and Germany tie for second, while the U.S. fails to place in the top 10. Read More

Turner Construction Wins Big with Green Building

With almost 200 LEED-certified projects to its credit and another 230 LEED-registered projects in progress, Turner is one of the biggest construction companies in the U.S. Read More