Peak asphalt: the return of gravel roads

Peak oil – arriving or already arrived – is placing a tremendous strain on the world’s economy. Because of this strain, the kind of money used for maintaining roads is quickly disappearing and the result is the return of unpaved roads. … in the coming years we’ll see more and more roads returning to gravel, as it was commonplace in the Western World up to about 50 years ago.

Where Have We Been; Where Are We Going?

Driving down the broad avenues of Cleveland, Ohio, was like flipping through the pages of a picture book about the rise and fall of our industrial empire. Where demolitions had not removed things — a lot was gone — stood the residue of a society so different from ours that you felt momentarily transported to another planet where a different race of beings had gone about their business.

How to make your own low-tech vertical farm

Vertical farming has become a popular idea, but what is mostly forgotten is that the energy required for the operation and construction of vertical farms largely negates the ecological advantages. This also applies to small-scale systems, like those of Philips (a concept) or Inka Biospheric Solutions (a product).

The Economic Potential of Local Building Materials

A while ago now I was in London for the launch of the Prince’s Foundation for the Built Environment’s ‘Building a New Green Economy’ conference, where I was a speaker alongside Tim Jackson, David Orr and Stewart Brand. You can read about the event here, and films of our talks will be posted soon. I mention it today because I want to draw your attention to the report launched at the conference, Sustainable Supply Chains that Support Local Economic Development, available to download here.

How to provide relief to rural Americans, create jobs, and lower emissions … all at once!

Most homeowners in the U.S. would come out ahead if they invested in energy efficiency improvements — new insulation, sealed windows, more efficient boilers, and the like. So why don’t they do it? Simple: the upfront costs are steep and the paybacks can take a long time. Many homeowners don’t have access to the capital to cover the costs, or they worry that they will move before the the costs are repaid, thus leaving subsequent owners to reap gains they didn’t pay for.