"Until now, little has been known about the climate change reductions that might be offered by reusing and retrofitting existing buildings rather than demolishing and replacing them with new construction. This groundbreaking study concludes that building reuse almost always offers environmental savings over demolition and new construction. Moreover, it can take between 10 and 80 years for a new, energy-efficient building to overcome, through more efficient operations, the negative climate change impacts that were created during the construction process." Read more.
12 posts categorized "Trash"
Harvesting Steel Wire
"There is a huge need for construction materials, at the same time the planet everywhere is littered by millions of used car tires. A way has to be found for re-using the materials that car tires are made of: rubber and steel. Large scale processes for this are well known. At the smallest scale of use better methods of recuperation have to be developed."
"Each car tire contains 70 meters of steel wire with a 1 mm cross section. When the properties of the composing parts of a used rubber tire are well understood, then the practice of recuperation can be adapted to it." Illustrated manual at Demotech.
This Hiding Place Should Never be Disturbed
"Every day, the world over, large amounts of high-level radioactive waste created by nuclear power plants is placed in interim storages, which are vulnerable to natural disasters, man-made disasters, and to societal changes. In Finland the world's first permanent repository is being hewn out of solid rock - a huge system of underground tunnels - that must last 100,000 years as this is how long the waste remains hazardous.
Once the waste has been deposited and the repository is full, the facility is to be sealed off and never opened again. Or so we hope, but can we ensure that? And how is it possible to warn our descendants of the deadly waste we left behind? How do we prevent them from thinking they have found the pyramids of our time, mystical burial grounds, hidden treasures? Which languages and signs will they understand? And if they understand, will they respect our instructions? While gigantic monster machines dig deeper and deeper into the dark, experts above ground strive to find solutions to this crucially important radioactive waste issue to secure mankind and all species on planet Earth now and in the near and very distant future."
French Towns Swap Rubbish Trucks for Horse-Drawn Carts
Perpignan is one of 60 French towns that have struck upon a cheaper and greener way to collect household waste – ditching the dustbin lorry in favour of a horse and cart. Read. Thanks, Johan.
Art Can Save The World - But Then We Need More Artists
These days, artists have no difficulty in finding free materials to work with. The same stuff can be used over and over again, for different purposes. One artwork can be transformed into another. Why can't our industrial production system work the same way? Because it is automated and needs standardized parts. Mass production and re-use of scavenged materials don't match, unless the materials undergo the (mostly energy-intensive) intermediate step of recycling.
Above: Hubcap creatures by Ptolemy Elrington (also see his lamps - why do we need new materials to make lamps? There is enough trash in the world to make lamps for another 10,000 years).
Plastics in the World of Tomorrow - Plastics in the World of Today
Plastics in the world of tomorrow (1944).
Plastics in the world of today (October 2009).
A rising tide of ocean debris
The Marine Debris Index presents state-by-state and country-by-country data about marine debris collected and tallied by volunteers around the world on one day each September at the International Coastal Cleanup. Almost 7 million pounds of trash (3 million kg) was collected. (via). Related: fishing for litter - the dustcarts of the sea.
