Today…
•  1.4B cattle….with a global impact on CH4 levels…
•  SO2 release is ~160Tg yr-1…~2x all natural
emissions…
•  More N2 fixed synthetically & applied as fertilizer
than is fixed naturally in all terrestrial ecosystems…
•  Half of all accessible freshwater is used by
mankind…impacts on rivers,
groundwater….depletion & contamination…
.