How about using the heat from the Earth’s core to power your home? Guess what: you already are. Solar, wind and water power are the big three natural and sustainable sources for electric power, but the North Bay also benefits from a fourth—geothermal energy.

The geological conditions that allow access to geothermal heat and steam are scattered in just a few areas around the world, almost always where the subterranean slabs of planetary rock known as tectonic plates are moving against each other. Bruce Carlsen, Calpine’s Director of Environmental Health and Safety at The Geysers, explains the underlying forces.

The same conditions often create numerous hot springs and can be a source of seismic activity—as is also the case in the North Bay. But while earthquakes can alter the flows that feed hot springs, Carlsen explains that the deeper strata that feed geothermal steam fields are not affected.

The Geysers is by far the biggest geothermal generating facility in California, but Carlsen says there are some other locations that could be developed to make a smaller contribution to the state’s energy needs.

Bruce Carlsen talks about geothermal energy in Sonoma County at an informal potluck gathering at the Glaser Center in Santa Rosa on Aug. 31, 5:30-7:30 p,m, co-hosted by the Climate Protection Campaign.

A power struggle in Windsor is pitting homeowners against PG&E, whose engineers have concluded that the best place for a new electrical substation lies in the town’s south center area. The people already living nearby think that’s a very bad idea.

Homeowner Rosemary Olson describes the reaction she got when she shared the PG&E substation plans with an electrical analyst who has no connection to the project.

Another issue with potential health impact, says Dr. Wayne Freenman, is exposure to the constant electro-magnetic fields that would be present at the substation.

Defenders of uniform access to the internet, a concept termed "net neutrality" are calling on the FCC to reject a new proposal from Google and Verizon to create multiple tiers of access.

Historically, Google has been among the defenders of of Net Neutrality. But Craig Aaron, Managing Director of the Communications watchdog non-profit Free Press, says the company’s latest move appears to contradict that stance.

The joint announcement of their proposed new regulatory framework from Google and Verizon announcement drew a mixed and bitterly divided reaction from tech writers across the country, but was defended in a Washington Post op-ed essay by the top executives of the two companies.

The Free Press petition drive to tell Google, "Don't Be Evil," is online here.

PG&E reports it is about halfway through its rollout of wireless Smart Meters to monitor utility use. But critics of the meters are calling for a moratorium on the devices, for multiple reasons, including health concerns.

Sandi Maurer, founder of the EMF Safety Network, explains that the possible health problems resultant from exposure to wireless transmission derive from their effects on the sophisticated bio-electric processes within the human body.

These electrical considerations are heightened, Maurer notes, for individuals with medical devices, such as pacemakers, implanted in their bodies.

For people who are experiencing health problems after a new meter has been installed at their home, Maurer says there is recourse available.

The biggest number of complaints about the new Smart Meters have not been about health issues, however, but about billing problems.

In the article, Are Smart Meters Smart? the EMF Safety Network offers an extensive critique of the new metering technology.