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.
If we would stuff people in the ‘Queen Mary 2’ like we fold passengers into airplane seats, the ship could transport more than 500,000 people
What will remain of greentech, cleantech and ecotech if nanotechnology turns out to be harmful for humans and the environment?
Fast and complicated calculations are a product of fossil fuels.
Build a pinhole camera, turn your bedroom into a camera obscura, and rediscover photography.
Replacing tractors with real horse power could be the revolution that agriculture needs.
While the first generation of biofuels is wreaking havoc on the environment and the food markets, the second generation is set to make things even worse.
Drinking bottled water is a more ecological choice than consuming soft drinks, coffee, fruit juice or beer.
Turn off your flat screen television and get lost in 17th, 18th and 19th century optical entertainment.
Researchers are overly optimistic when they present the sustainability advantages of solar PV panels.
If water, sewage, gas and oil can be transported through underground pipelines, why not consumer goods as well?
Downloading cars, houses and aeroplanes is no science fiction.