Climate change

A brilliant new feature by the folks at Nature explains why this century is for the city. Plus, the top new megacities by 2025.

3 | October 20, 2010 2:07pm | By Andrew Nusca

When it comes to ensuring the sustainability of your supply chain, you'll need to dig deep for complete transparency.

1 | September 28, 2010 3:01pm | By Heather Clancy

Scientists are developing scalable processes that convert CO2 into alcohol-based fuels. The process is seen as an alternative to sequestering carbon.

9 | September 24, 2010 3:53pm | By David Worthington

Foreign cleantech firms should look to the United States wind power market for growth, says Ingeteam CEO Aitor Sotes.

September 15, 2010 3:00am | By Andrew Nusca

Energy efficiency programs are common theme for these innovative environmental advocates.

September 9, 2010 3:34pm | By Heather Clancy

Vancouver, Canada has partnered with Cisco and Pulse Energy in its quest to be the greenest city in the world by 2020. Targets: buildings, datacenters and the smart grid.

2 | September 9, 2010 10:24am | By Andrew Nusca

NASA figures out Hurricane Earl's path. Can New York City survive a hit from a major hurricane?

12 | September 1, 2010 9:51pm | By Boonsri Dickinson

Revisions to frameworks from the World Resources Institute and World Business Council for Sustainable Development are due for public comment in late September.

2 | August 23, 2010 11:59am | By Heather Clancy

China is the world's largest wind power market, according to the Department of Energy. And research firm iSuppli expects China to stay No. 1 for a good time to come courtesy of government support.

8 | August 5, 2010 12:35pm | By Larry Dignan

Encouraging energy efficiency is one thing, but utilities across the nation need to find new sources of revenue.

5 | July 29, 2010 8:18am | By Heather Clancy

The U.S. wind energy industry's trade association is calling for Congress to pass a national renewable energy standard to end the industry's boom and bust cycles.

5 | July 28, 2010 3:33pm | By David Worthington

The information technology industry has cut CO2 emissions by 32 million metric tons globally since 2007 is on pace to make further cuts, according to a study.

July 27, 2010 5:47am | By Larry Dignan

Researchers say that it's smart to implement white roofs and pavements in the world's biggest cities. The benefits: saved energy, cooler cities and an easy way to fight global warming.

12 | July 23, 2010 7:04am | By Andrew Nusca

How often do you evaluate and reset your strategy?

July 13, 2010 6:03am | By Heather Clancy

Cisco smart grid chief Laura Ipsen says the development of the smart grid parallels the development of the Internet -- and the tech giant wants in. Here's how.

1 | July 12, 2010 7:13am | By Andrew Nusca

If clean technology is going to be a success, the rules for how to do business in the sector must be clearer, experts say.

3 | July 7, 2010 7:47am | By Andrew Nusca

Philadelphia set a goal to make the city the "greenest" in the country by 2015. We discuss the city's progress with its new sustainability director.

4 | July 6, 2010 4:00am | By Christina Hernandez

Global cleantech investment by venture capital firms totaled more than $2 billion in the first half of 2010. Here's a breakdown of to whom and where it went.

July 1, 2010 9:06am | By Andrew Nusca

At the REFF--Wall Street forum in New York City, cleantech experts discussed the state of the industry and outlined seven renewable energy targets for 2020.

1 | July 1, 2010 6:30am | By Andrew Nusca

Researchers break more ground for geothermal in England. Will this be the country's next leading renewable energy source?

3 | June 28, 2010 4:00am | By Melissa Mahony