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Energy consumption during human activities, as the largest source of greenhouse gas emissions, has the largest potential for climate change abatement.

Parabolic-trough solar collectors at Kramer Junction in the Mojave desert in California. This facility began operation in 1986 and can generate 150 MW peak output.

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• Featured Article Phosphor-Based White LEDs: Mixed Blessings?

  Light-emitting diodes use less energy and last longer than even compact fluorescent lights.This article, written by Angela Spivey*, appeared first in Environmental Health... More »

• Featured Article Molten Rock as a Source of High-Grade Energy

  Iceland Volcano's Molten Rock Could Become Source of High-Grade Energy Krafla volcano gives geologists unique, unexpected opportunity to study magma Geologists... More »

• Featured Article Spiral Pine Needle Cookstove

  Spiral Pine Needle Cookstove Challenge In Uttrakand, India, wood fuel is a scarce commodity, as it is illegal to cut branches from the government-owned pine trees. The... More »

Recently Updated

Natural gas Last Updated on 2013-05-08 at 17:54 Natural gas is a gas consisting primarily of methane (CH4). It is found as a raw naturally occurring gas in underground reservoirs, as gas associated with underground... More »

Lifestyle, technology and CO2 emissions in China Last Updated on 2013-01-06 at 17:29 Introduction China as the world’s largest developing country and the most populous country has achieved notable success in developing their economy with... More »

Ethanol Biofuels in the United States Last Updated on 2012-10-07 at 22:48 Biofuels are a major source of renewable energy in the United States. Ethanol produced from corn starch accounts for 90% of the biofuels consumed, but only 5% of all... More »

Green building Last Updated on 2012-09-28 at 14:17 Green building is the practice of increasing the efficiency with which buildings use resources — energy, water, and materials — thereby reducing a... More »

Greenhouse gas Last Updated on 2012-09-22 at 11:56 A greenhouse gas is one of several gases that can absorb and emit longwave (infrared) radiation in a planetary atmosphere. This phenomenon is often termed the greenhouse... More »

Turning Plant Sugar into Ethanol Last Updated on 2012-08-22 at 14:54 Today, a vintner creating the next great cabernet, a moonshiner making whiskey, and an engineer processing biomass employ brewer’s yeast, the fungus Saccharomyces... More »

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