Energy

Landfills produce a lot of methane gas, one of the main greenhouse gases contributing to global warming. In an effort to both reduce that impact and responsibly reuse the gas, some municipalities are converting it into energy.

In Brighton, Colorado, solar panels on one person's farm could be built by an investment from another local, creating the first solar co-operative in the U.S.

As the push for renewable energy increases, The Nature Conservancy points out that renewables need a lot of land to work and could cause "energy sprawl."

For political, technological, and even demographic as well as economic reasons, don't expect American oil consumption to increase over 2007 levels. $3 gas is here to stay, and the days of the petrol-gulping SUVs and guzzlers may be numbered.

A new Transportation Research Board study examines the relationship between land use and carbon emissions - specifically reduction of vehicle miles traveled resulting from densification and the shape of new growth to come.

Eating local is in vogue, as the environmental impacts of industrialized agriculture surface. But is eating local really the right response? One author says maybe not.

Director of the White House Office of Urban Affairs Adolfo Carrion, Jr. visited Kansas City on Tuesday to visit the site of the city's new "Green Impact Zone". The inner-city Zone will be a laboratory for energy-saving techniques.

A new study from the UK Royal Society has determined that geo-engineering techniques are technically feasible approaches to address high levels of carbon dioxide in the atmosphere and the resulting global warming.

LEED-certified buildings may be constructed with little energy, but some are just as energy-intensive as non "green" buildings once they're in use. This disconnect is prompting the U.S. Green Building Council to change its rules.

A new HVAC system for a building in Minnesota that was expected to meet high environmental standards was going to come in at almost three times its originally estimated costs. So city officials are delaying.

Significant interest and investment has descended on a plan to create vast solar power plants in the Sahara Desert to power Europe, but the challenges are great, says Reuters.

Energy consultant Michael Lynch argues that there are upwards of 10 trillion barrels of oil out there, as opposed to the 2 trillion that peak oil proponents recognize.

Small scale hydroelectricity projects are popping up all over the country, especially in remote and environmentally sensitive places.

The ailing auto industry has many manufacturers in the Midwest transitioning to the renewable energy market, opening factories to build wind turbine parts and solar panels.

The goal is to increase California's use of clean, renewable sources of electricity so as to meet the state's climate protection goal. Two bills are being debated that will require that 33% of electricity sources be composed of renewables by 2020.

The Whole Village in Ontario, Canada is an environmentally sustainable co-op made up of architects, doctors and teachers instead of draft dodgers and dropouts.

It didn't last long: one month to be precise. The American public ate through the $3 billion stimulus program for purchasing new, efficient cars and trucks as fast as they could qualify their older gas guzzlers for the $3,500 and $4,500 credits.

Green buildings are great, but don't do too much if they're located in grossly un-green places. The city of Portland is trying to address the issue by creating "eco-districts".

San Francisco has begun installing 1,200 new bus shelters that incorporate a solar array on the roof to power an LED display showing bus arrival times.