It's a bit more complicated than that. Wood can be both green and non-green. Burning a full grown tree could release hundreds of years worth of carbon in an instant. Replanting that tree won't offset the effect of that CO2 within the 50-100 years in which global warming is expected.
Same for buying local. Buying mass produced grain from Brazil might be more efficient, but worse for the environment because of the deforestation that's driven by high food export prices.
We won't really know for sure until we have a comprehensive way of accounting for all the different factors on a case-by-case basis.
Same for buying local. Buying mass produced grain from Brazil might be more efficient, but worse for the environment because of the deforestation that's driven by high food export prices.
We won't really know for sure until we have a comprehensive way of accounting for all the different factors on a case-by-case basis.