Can we make modern health care carbon-neutral and maintain the levels of care, pain relief, and longevity that we have come to take for granted?
If we build them out of wood, large wind turbines could become a textbook example of the circular economy.
Researchers have calculated minimum levels of energy use needed to live a decent life, but what about maximum levels?
To focus on energy efficiency is to make present ways of life non-negotiable.
Directly coupling DC power sources with DC loads can result in a significantly cheaper and more sustainable solar system.
Despite technological advancements since the Industrial Revolution, cooking remains a spectacularly inefficient process.
Estimates about the fuel efficiency of aircraft ignore the record of the pre-jet era.
We don’t need better batteries, we need better cars.
Increasing the share of renewable energy will not make us any less dependent on fossil fuels as long as total energy consumption keeps rising.
The embodied energy of the memory chip alone exceeds the energy consumption of a laptop during its life expectancy of 3 years.
LEDs introduce lighting in places and situations where there was no lighting before.
In spite of all the high-tech that has been squeezed into cars, the 2CV from 1949 is still more energy efficient than the smallest Citroen today.