photo: jon smith via flickr

If you buy a carbon offset for the flights you take, you're in a small minority--at least according to a new survey by the UK Civil Aviation Authority carried out at Stansted airport last

We do go on that flying is dying, and have complained before about the carbon footprint of private jets. We often complain about ostentatious monster homes.

Image credit: Centre for Alternative Technology

Environmentalists may spend a lot of time battling against the fossil fuel lobby, but the awkward truth is that there is plenty of fighting between "green" groups too—perhaps most notably when it comes to what constitutes 'sustainability', and how d

Image credit: Boeing

As Lloyd reported a while back, Zeppelins are back—and not without good reason. Silent, stylish and low-carbon, many of us who fly regularly have been dreaming of the day when airships will once again grace the skies.

Photo: Qinetiq

Thanks to Solar Power
A week ago we wrote about the Zephyr "Eternal Aircraft", an unmanned solar plane that had just broken many records by staying up in the air for 7 days.

photo: Diamond Aircraft

A new and notable world's first in the realm of aviation biofuels: EADS, maker of the Airbus and lots of defense and transport aircraft, has announced the completion of the first flight powered entirely by algae-based biofuel.

Photo: Qinetiq

Breaking All Kinds of Records
A couple weeks ago we wrote about the Solar Impulse, a solar airplane that flew for over 24 hours straight. That was very impressive for an aircraft with someone on board, but compared to the solar-powered Zephyr unmanned aircraft, that's child's play.

Photo: Boeing

First Flight: Early 2011
Boeing has just unveiled the hydrogen-powered Phantom Eye unmanned airborne system, and aircraft that should be able to stay up at 65,000 feet for up to four days without refueling. Of course Boeing's first customer will no doubt be the U.S.

Image credit: Transition Culture

It's so much easier to be against something than for something. In fact, I'd argue that is one of the central strategic challenges facing sustainability activists.

Artists conception from BBC

Four years ago we wrote about the idea of standing seating on airplanes, and noted that "there could be a TreeHugger case that more people crammed in means less fuel burned per person, and we also suspect that it will end deep vein thrombosis, but generally we think it gives new meani