The environmental impact of concrete

HempCrete, made from hemp and lime, is another eco-friendly alternative to concrete – http://www.americanlimetechnology.com/what-is-hempcrete/

daryanenergyblog

photo-3j A concrete cement mill in operation

What is the most destructive material known to humans? Plutonium?Cyanide?Whatever the hell they put in Marmite? No, it would have to be concrete. The Guardian recently ran a series on the environmental impact of concrete which is worth a read.

Much of the focus on climate change mitigation, or pollution in general, tends to focus on energy production. However, in truth this is merely one of several sources of carbon emissions. Agriculture and land use changes tends to be the next biggest headline at about a quarter of emissions (which is actually arguably larger than it looks given the amounts of fossil fuels used in agriculture both by farm machinery and the production of fertilisers).

After that its the acquisition of raw materials (mining, refining and processing of base metals and minerals). And concrete, as one of the mostly widely used…

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