Eco20/20

Why you should drive slower and fill up less

Chemists claim that by mimicking photosynthesis in the lab, they could revolutionize fuel production within five years. Katharine Sanderson reports. Dan Nocera, a chemist at the Massachusetts Institute of Technology (MIT), Cambridge, made a bold statement at the American Chemical Society's fall meeting in Philadelphia last month. He claimed that within five years he could build a device capable of producing locally sourced hydrogen gas, which could power all the world's houses, fill people's car batteries and revolutionize energy supply in the developing world. "I guarantee, in under five years, you'll see this," he said.

Traffic was piling up going from West Seattle to Interstate 5 - and that meant Rich Feldman had to drive a few feet and stop, over and over, all the way up the access ramp. As they looked out at the line of cars ahead of their plug-in Toyota Prius, Feldman and the business executive sitting beside him, John Clark, couldn't have been happier.

Engineers and scientists at The University of Texas at Austin have achieved a breakthrough in the use of a one-atom thick structure called "graphene" as a new carbon-based material for storing electrical charge in ultracapacitor devices, perhaps paving the way for the massive installation of renewable energies such as wind and solar power. The researchers believe their breakthrough shows promise that graphene (a form of carbon) could eventually double the capacity of existing ultracapacitors, which are manufactured using an entirely different form of carbon. "Through such a device, electrical charge can be rapidly stored on the graphene sheets, and released from them as well for the delivery of electrical current and, thus, electrical power," says Rod Ruoff, a mechanical engineering professor and a physical chemist. "There are reasons to think that the ability to store electrical charge can be about double that of current commercially used materials. We are working to see if that prediction will be borne out in the laboratory."

A cheap new way to attach mirrors to silicon yields very efficient solar cells that don't cost much to manufacture. The technique could lead to solar panels that produce electricity for the average price of electricity in the United States.

Energy utility Exelon Corp. spent nearly $1.2 million in the second quarter to lobby on tax credits for renewable energy sources and other issues, according to a recent disclosure report. The Senate on Tuesday passed a broad tax package providing more than $17 billion in renewable energy tax incentives that the solar and wind industries say are crucial if they are to become significant energy sources in the near future. But the legislation faces obstacles in the House, where three separate bills are on the schedule Wednesday.

Editor's note: This was Sen. Barbara Boxer's opening statement Sept. 24 during a hearing on President Bush's environmental legacy. The Administration did not send representatives to the hearing. The purpose of this hearing is to examine the Bush Administration's record on important public health and environmental matters. Unfortunately, instead of reviewing accomplishments-we look back on years filled with environmental rollbacks that serve special interests, and do not serve the American people.

The head of the U.S. Environmental Protection Agency lied to Congress about his rejection of a request from California meant to curb global warming emissions, Sen. Barbara Boxer said on Tuesday. Boxer, a California Democrat who has called for EPA chief Stephen Johnson to resign, made the statement at a hearing on regulation of greenhouse gases under the U.S. Clean Air Act.

American Standard- Climate Control System: ACONT900 7 Day Digital Programmable Thermostat

ON a strip of Santa Monica Boulevard in Los Angeles, a futuristic experiment posing as an ordinary fuel station may be bringing the world one step closer to the hydrogen age. From the moment engineers started dreaming about hydrogen as an alternative to oil, they faced a nagging question: What should come first - the fuel-cell car or the hydrogen pump?

Solar energy can be utilized in various ways - to provide electricity, mechanical power, heat and lighting. Passive solar heating and cooling can save substantial electricity bills. Design of a building is very important for tapping passive solar energy. The building and windows are designed in such a way that they carefully balance their energy requirements without additional mechanical equipment. Solar benefits are utilized through windows and pumps, and fans are used minimally. Passive solar energy utilizes building constituents such as walls, floors, roofs, windows, exterior building elements and landscaping to control heat generated by sun. Solar heating designs try to trap and store thermal energy from sunlight directly. Passive cooling minimizes the effects of solar radiation through shading or generating air flows with convection ventilation.

The solar power installation at Applied Materials' headquarters is further evidence that companies looking to go green should think blacktop. The Sunnyvale, Calif.-based maker of gear for making high-tech products announced Friday that it has completed the installation a pair of solar power systems that together can produce 2.1 megawatts of energy--which qualifies it, the company says, as the "largest solar power deployment at a corporate facility in the United States."

Renewable Energy Hold the Key to Our Energy Needs

The Grumpy Old Man compensates the CO2 for each visit to this blog

The California city of Berkeley has approved a new financing scheme for loans to homeowners who install rooftop solar panels, a landmark programme that could inspire other US cities to follow suit. The Berkeley scheme would finance city-backed solar loans through a small addition to the property taxes of each participating home, eliminating the need to find up-front cash to install panels that can cost the average American upwards of $30,000.

The idea of painting our roofs and roads white to offset global warming is not new, but a recent study has calculated just how significantly white surfaces could impact greenhouse gas emissions. Last week, researchers at Lawrence Berkeley National Laboratory and UC Berkeley presented their study at California's annual Climate Change Research Conference in Sacramento. If the 100 largest cities in the world replaced their dark roofs with white shingles and their asphalt-based roads with concrete or other light-colored material, it could offset 44 metric gigatons (billion tons) of greenhouse gases, the study shows. That amounts to more greenhouse gas than the entire human population emits in one year, according to a recent article in the Los Angeles Times. The strategy could also offset the growth in carbon dioxide emissions, which account for about 75% of greenhouse gases, for the next 10 years.

Engineers and scientists at The University of Texas at Austin have achieved a breakthrough in the use of a one-atom thick structure called "graphene" as a new carbon-based material for storing electrical charge in ultracapacitor devices, perhaps paving the way for the massive installation of renewable energies such as wind and solar power.

Abrupt climate change is a potential menace that hasn't received much attention. That's about to change. Through its Climate Change Prediction Program, the U.S. Department of Energy's Office of Biological and Environmental Research (OBER) recently launched IMPACTS - Investigation of the Magnitudes and Probabilities of Abrupt Climate Transitions - a program led by William Collins of Berkeley Lab's Earth Sciences Division (ESD) that brings together six national laboratories to attack the problem of abrupt climate change, or ACC.

Product Review on the Miles XS500 Electric Highway Speed Sedan