http://www.chrismartenson.com/peak_oil
Vids 17a, b, c and 18 are all I've watched so far.
I've always maintained that the only reason that we can have society and civilisation is because agriculture allowed us to extract more calories than the effort of agriculture required.
Vids 17a, b, c and 18 are all I've watched so far.
I've always maintained that the only reason that we can have society and civilisation is because agriculture allowed us to extract more calories than the effort of agriculture required.