Diesels are fuel efficient and practical, but they're dogged by a reputation for being about as much fun as a tax audit. VW's worked hard to change that perception with cars like the Jetta TDI, but it might be the sweet Concept BlueSport roadster that finally convinces Americans diesels are cool.

One of the world's top climate scientists has written a personal new year appeal to Barack and Michelle Obama, warning of the "profound disconnect" between public policy on climate change and the magnitude of the problem.

For those who haven’t heard of it, the Aptera 2e is the first vehicle from Aptera Motors, a Carlsbad startup with funding from Idealab, Google, and other sources.(Also for those who hadn’t heard of it: it’ll look great in your cave.)

A German research ship laden with 20 tonnes of iron sulphate has whipped up a storm of protest as it sails towards the Antarctic, where it intends to dump its cargo into the ocean.

Scientists on thePolarstern, which set sail from Cape Town in South Africa on 7 January, plan an ocean fertilization experiment that some argue will violate international law.

Government policy, entrepreneurship and consumer awareness will accelerate clean technology innovation in China — and the future is bright for investors, says venture capitalist Gary Rieshel.

Cleaner and more efficient technologies are needed in all China's industries.

Cornell plant scientists have invented a new method that uses manure and other farm byproducts to remove toxic hydrogen sulfide from biogas -- a renewable energy source derived from the breakdown of animal waste.

Hydrogen sulfide can combine with water to cause acid rain and to corrode engines. Its removal makes biogas a more viable alternative fuel source. The new method will be marketed under the name SulfaMaster.

In 331 days' time, 15,000 officials from 200 countries will gather in the Danish capital with 1 goal: to find a solution to global warming. Michael McCarthy, Environment Editor, presents the first in a series of dispatches on the crucial summit

U.S. scientists say they can turn E.coli, a strain of bacteria present in the human digestive tract, into a fuel that is twice or three times more efficient than ethanol. The scientists, attached to theUniversity of California in Los Angeles (UCLA) managed to create a strain for the first time that generates alcohol with five carbon atoms per molecule instead of the regular two or three.

Nearly one-fifth of the world’s coral reefs have already succumbed to the combined onslaught of global warming, water pollution, and overfishing. Without immediate measures to mitigate climate change and reduce the local pressures on reefs, the world is set to lose another 15% of coral reefs over the next 10−20 years and 20% over 20−40 years. Those are the main conclusions of a new report, produced jointly by a handful of government agencies and nongovernmental organizations from around the world, including the U.S.

Las Vegas, NV (AHN) - Motorola Inc. introduced a cell phone made from recycled plastic water bottles.

The MOTO W233 Renew's plastic housing is not only made of recycled material, but the company said the device is the first "carbon neutral" phone.