Group items tagged

"A new study from the Center for the Built Environment at the University of California, Berkeley, confirms what everyone probably knew intuitively: If you give people control of their own environment they use less energy. According to the New Scientist, by installing individual vents and controls for each worker (which automatically turn off when the desk is vacant) instead of cooling the whole office to one temperature, it can cut the energy consumed for cooling in half. It was particularly effective in hot, humid climates; they modeled it on Singapor and concluded that 'In an environment like Singapore, it's pretty clear that these systems would pay for themselves in energy savings.'"

"Chinese investment in clean energy soared by more than 50 percent in 2009 to reach $34.6 billion," which is about double the US.

Direct experience of extreme weather events increases concern about climate change and willingness to engage in energy-saving behaviour, according to a new research paper published in the first edition of the journal Nature Climate Change this week. In particular, members of the British public are more prepared to take personal action and reduce their energy use when they perceive their local area has a greater vulnerability to flooding, according to the research by Cardiff and Nottingham Universities.

It's said that information is power but could information mean less power, when it comes to electricity use? Environmentalists and makers of so-called smart meters are convinced that's the case. They say if consumers could see in real time how much power they're using, they'd conserve more. But some behavioral economists say no way. They say electricity is so cheap that real-time information might lead people to run their lights and gadgets even more.

The battery-powered robot taxis use energy resources equivalent to 200 mpg and can be programmed for custom routes.

"The U.Va. research, just published in the journal Environmental Science & Technology, demonstrates that algae production consumes more energy, has higher greenhouse gas emissions and uses more water than other biofuel sources, such as switchgrass, canola and corn."

"This analysis is interesting because it highlights our lopsided thinking about climate change. The media tends to focus a lot on solutions like hybrid cars and CFLs, but transportation and energy use are relatively small parts of the problem. The stuff we consume accounts for nearly half of the greenhouse gases in an area like Portland. And of that, it's the extraction of raw materials and the manufacturing processes for consumer goods that are the biggest culprits. (Food and long-distance freight are second and third.)"

Challenged by strict air-quality rules, dairy farmers face costly changes to generators used to burn methane to produce power. With the intention of using these generators to eliminate methane waste, along with electricity bills, farmers now meet an unexpected consequence- the conversion of methane into electricity produces nitrogen oxides, or NOx. This pollutant exacerbates the state's smog problem. After already spending several hundreds of thousands of dollars on their "dairy digester" systems at the urge of the state, farmers are forced to abide by the state's air quality standards by purchasing expensive additional equipment, or shut down their waste-consuming generators. The San Joaquin Valley Air Pollution Control District's limit of 11 parts per million of NOx for new digester systems works out to equal the emissions of 26 cars for every 1,000 cows, said Frank Mitloehner, an associate professor at UC Davis' department of animal science.