Tree canopy coverage
Tree coverage is often a good thing. Shade is often a good thing and increased amounts of biomass is often a good thing.
Go plant a tree.
http://www.oregonlive.com/portland/index.ssf/2010/03/green_portland_apparently_isnt.html
Tree coverage is often a good thing. Shade is often a good thing and increased amounts of biomass is often a good thing.
Go plant a tree.
http://www.oregonlive.com/portland/index.ssf/2010/03/green_portland_apparently_isnt.html