Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from researchers from University of Southern Denmark after studying the ability of crushed concrete to bind phosphorus.
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Rainwater
Gardening is not only one of the healthiest hobbies you can have – both in terms of physical productivity and the “fruits” of your labour – but also one of the most sustainable. Still, depending on your practices (as well as your location), it can seem to be an ironically large waste of water, particularly here in Australia.
One of the core issues surrounding the planting of trees and maintenance of crops or plantations is how to efficiently water them. Currently 1/3 of the world’s population lives in regions where water is scarce and this number is expected to double by 2025. These areas of dry land also have other soil issues, like erosion, which mean that the substrate is no longer able to support plant life.
A device created by Dutch inventor, Pieter Hoff, has the potential to mitigate some of the issues faced by farmers and business in areas of drought – the Groasis Waterboxx. The Waterboxx was recently listed as one of Popular Science’s top 10 inventions of 2010, and is designed to trap condensation that falls from the plant’s leaves during the night.