Considering that the oceans hold more garbagethan fish by now, this
might be the right time to retrain our fishermen and let them hunt for
companies offer equipment to fish garbage out of rivers, lakes and
harbours. They say they could build larger dustcarts for seas and
oceans, too. Send the bill to the disposables industry -
and let the cleanup begin.
Energy hungry America teaches the world how to build ecological houses.
A dirt cheap and 100 percent ecological house that has all the comforts of an ordinary home, without being connected to the electricity grid, waterworks, sewer system or the natural gas network. It does exist, but in most countries, building one is not allowed.
An Earthship is a completely self-sufficient house that has a natural temperature regulation, without the use of a heating system. The building also generates its own electricity, collects and filters its own drinking water and cleans its own effluent water. The house is partly buried into the earth and is constructed mainly with waste materials; car tyres, aluminium cans and glass bottles. This low-tech building approach is ecologically as well as economically advantageous.
This autumn, the British coastal city of Brighton approved the construction of 16 Earthships. It’s the first time that a European city council has given builders the green light to mass construct this radical ecological housing form. In the United States nearly one thousand Earthships have been built, most of them in the desert of New Mexico. (Pictures: Michael Reynolds)
Hand powered drilling tools and machines The drilling tools that appeared in the late 19th century were not only a vast improvement over earlier tools; they also have many advantages over their present-day successors, the power drills.
Firewood in the fuel tank Wood gas cars are a not-so-elegant but surprisingly efficient and ecological alternative to their petrol (gasoline) cousins, whilst their range is comparable to that of electric cars.
The Citroen 2CV: cleantech from the 1940s In spite of all the high-tech that has been squeezed into cars since then, the 2CV from 1949 is still more energy-efficient than the smallest model of the French car designer today.
The bright future of solar powered factories To power industrial processes like the making of chemicals, the smelting of metals or the production of microchips and solar panels, we need a renewable source of thermal energy.
Trolley canal boats For many centuries, canal boats were propelled by men, horses or mules on the towpath beside the water. Before diesel power took over, engineers developed several interesting methods powered by electricity: trolleyboats, floating funiculars and electric mules.