Footprint: our impact on Earth is getting heavier.
Rees
William E
WE
D018533:Biomass; D003247:Conservation of Natural Resources / Q000191:economics / Q000639:trends*; D019049:Developed Countries / Q000191:economics; D018534:Earth, Planet; D017753:Ecosystem; D005579:Fossil Fuels / Q000600:supply & distribution; D008962:Models, Theoretical; D013672:Technology / Q000191:economics / Q000639:trends*; D013816:Thermodynamics; D014481:United States; D003313:Zea mays
D005579:Fossil Fuels