Most options for wood used in decks, outdoor furniture and siding are rarely entirely earth friendly, since they are often treated with heavy metals or toxic chemicals, or logged from unsustainable forests. One company is innovating in the space by altering the chemistry of the wood itself to make it weather and decay resistant. 
Source: http://feedproxy.google.com/~r/Techcrunch/~3/OigR7DWG6_0/
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