Concentration of CO2 in the Atmosphere

Thoughts on the Future of Renewable Power

Pika Energy’s T701 wind turbine near Mount Baker in Washington State. Photo by Brian C.

By George Harvey

Most of the states in the Northeast are struggling with net-metering, and especially caps limiting the amounts of power utilities must buy under the plans. Maine has failed on net-metering legislation. New Hampshire […]

The Environmental Impact of the Volkswagen Emissions Cheating Scandal

Volkswagen is ponying up $18.2 billion to deal with its emissions cheating scandal, but environmentalists wonder if all the money in the world will be able to save those already negatively affected by the pollution and the wound to consumer confidence. Credit: Roddy Scheer.

EarthTalk® — From the Editors of E – The […]

Late Breaking News

As we go to press, we see two important news items.

First, The United States Supreme Court has decided to leave the Environmental Protection Agency’s regulation on mercury emissions from power plants intact. Twenty states had sued over the regulation.

This is particularly important. Until recently, mercury levels in our environment had […]

Solar and Wind Blow Gas Away

Wind turbines. Credit: D. O’Keefe, Michigan Sea Grant. CC BY-SA 2.0

By George Harvey

The declining costs of solar photovoltaics (PVs) and wind turbines have had effects on the entire energy market. These are clear in data from the Federal Energy Regulatory Commission. The FERC says that in the first quarter […]

It Mows, You Don’t

This lawn was a former cow pasture. No fertilizers, no seeding, and no ammendments, except the mowing. The owners have stopped mowing the lawn – and let this robot mower keep it looking like a golf course. Photo: N. R. Mallery

By N.R. Mallery

According to the EPA, gas-powered mowers produce […]

Transforming the Building Sector with Energy-Positive Homes

Rendering of the 85 homes at the Summit Oaks development at Village Hill in Northampton, MA. Photos courtesy of Transformations, Inc.

By R. Carter Scott

Buildings account for about 42% of the carbon emissions in the United States. The transportation sector uses another 25%. Why not use the building sector to […]