Sentences with phrase «total wood production»
New Zealand pine wood is one of the most sustainable and renewable wood resources, and its forests are expanding, increasing total wood production annually.
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The relationships between atmospheric CO2ppmv increase, the del C13 signatures of current atmospheric (and oceanic (dissolved) «CO2 ″), the del C13 signatures of oil, coal, and wood, and the estimates of anthropogenic CO2 production since 1850, all indicate that the ~ 110ppmv atmospheric CO2 increase since then has a «non-natural», i.e. anthropogenic source, even though the biosphere is absorbing approximately 55 % of the total anthropogenic CO2 production.
Forest plantations now cover more than 187 million hectares, less than 5 percent of total forested area, but account for 20 percent of current world wood production.