Electric ranges may actually be more efficient than gas ranges.

Which is better: a gas or electric range? Most serious cooks prefer gas, because it delivers heat instantly and is highly controllable. With typical electric cooktops, it takes longer for the burner to respond when turned on and when the setting is adjusted.

Electric ranges may actually be more efficient than gas ranges.

Which is better: a gas or electric range? Most serious cooks prefer gas, because it delivers heat instantly and is highly controllable. With typical electric cooktops, it takes longer for the burner to respond when turned on and when the setting is adjusted.

The Hallowell Acadia heat pump can operate at temperatures below 0 degrees and still perform significantly better than electric-resistance heat.

All this week, webcasting service BrightTALK is honoring Earth Day by providing five days of free green building presentations. Many of the presenters are world-class. If you can't fit it into your schedule, the recorded sessions will be available on-demand later.

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The ClimateMaster ground-source heat pump is recognized by the GreenSpec directory as a green product.

The myth that plants will clean the air is a seductive one: if true, we could fix indoor air quality problems without expensive changes to mechanical systems and without worrying about what materials we introduce to the indoor environment.

(For those who might feel that the Climate Denial Crock of the Week post needs some balance.)

Peter Sinclair is a graphic artist, illustrator, animator, and environmental awareness advocate. He's been posting a series of "Climate Denial Crock of the Week" videos on the internet.

An air-source heat pump is like a window air conditioner: Running one way, it cools, running the other, it heats. When outside air is cold enough, electric resistance heaters kick in. Most air source heat pumps work better in moderate climates than cold ones, although there are specialized models for cold areas.

EBN reported last October on a California law requiring annual energy-use reporting for all nonresidential buildings. (Commercial owners will have to disclose energy use starting in 2010.) How far behind is a national law?

"The National Oceanic and Atmospheric Administration released the first-ever nationwide report this morning on the level of polybrominated diphenyl ethers (PBDEs) found in U.S. coastal areas and the Great Lakes. The report contradicts earlier surveys that suggested PBDEs, chemicals commonly used as flame retardants in commercial goods since the 1970s but in large part discontinued because of health concerns, were found in only a few U.S.

You're aware of the major changes that are coming to the LEED Accredited Professional (LEED AP) system. If you pass the exam now, you come on board through the older, more familiar system that doesn't require actual LEED project experience.

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