From the sixteenth to the twentieth century, urban farmers grew Mediterranean fruits and vegetables as far north as England and the Netherlands, using only renewable energy.
Articles: energy efficiency (16)
I discuss some of the ways you can add the equivalent of an extra layer of clothes to your residence.
Why is the price of oil so low now? In fact, why are all commodity prices so low?
We need a speed limit for the internet.
It would make a lot of sense to restore this old way of warming, especially since modern technology has made it so much more practical, safe and efficient.
Cooling people by increasing local airflow is at least ten times more energy efficient than refrigerating the air in a given space, and it also adds the benefit of a personally controlled thermal environment.
Despite technological advancements since the Industrial Revolution, cooking remains a spectacularly inefficient process.
“It is a confusion of ideas to suppose that the economical use of fuel is equivalent to diminished consumption. The very contrary is the truth….no one must suppose that coal thus saved is spared-it is only saved from one use to be employed in others”.
Digital fabrication is praised as the future of manufacturing. While CNC machines have been embraced by many...it's important to consider the very high energy use of digital machine tools.
As a species, we must learn to live within the physical limitations of the biosphere. In the electric energy sector, this requires reversing the worldwide trend of ever-expanding electricity supply grids carrying energy vast distances from more and more large, centralized power plants. …