How Many Congressmen Does It Take To Screw Up a Light Bulb?

Congress this week will take up a bill that would reverse new federal lighting efficiency standards -- even though it's already led to the creation of new technologies and are saving households billions of dollars a year. 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

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

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

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

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

Kaiser Moves Closer to Small, Smart Hospital Design of the Future

A team of healthcare architects and computer chip engineers, a San Francisco engineering company, and a multidisciplinary design and consulting firm are vying to create the ideal plan for a smaller, smarter, more sustainable hospital for Kaiser Permanente. 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