Green shoots of growth.
D018533:Biomass; D002245:Carbon Dioxide / Q000032:analysis; D003246:Conservation of Energy Resources / Q000191:economics / Q000639:trends*; D005579:Fossil Fuels / Q000191:economics / Q000706:statistics & numerical data*; D014934:Wood / Q000737:chemistry
D005579:Fossil Fuels; D002245:Carbon Dioxide