Is the Caterpillar Satiated?
This next segment of the presentation explains why climate change can be solved with diet.
This slide combines data from three main sources, primarily from A. Barnosky's PNAS paper which estimated the biomass of wild fauna from 10K years ago and in 1970, the World Wildlife Fund Living Planet Report of 2014, which estimated that wild fauna declined by 52% in biomass from 1970 to 2010 and the UN IPCC AR5 Working Group 3, Chapter 11, Figure 11.9, page 836, which showed that our farmed animals eat 5 times as much food (7.27 Gt) as all humans (1.54 Gt). Since the weight of all humans in 2010 was around 400 Million tons, which is double the estimated weight of all wild fauna from 10K years ago, the equivalent weight of all farmed animals in 2010 was 2000 Million tons or 10 times as much. Therefore, in 2010, humans plus our farmed animals were presenting the profile of a biomass that is 12 times the weight of all wild fauna from 10K years ago.
Since 2010, human population has increased by roughly 80M per year, which means that our biomass is approximately 500 Million tons (7.5 Billion X 68kgs) as of 2018 and with our farmed animals, we present a biomass profile that is 15 times that of all wild fauna from 10K years ago. We can estimate that wild fauna has been declining by 3% per year from 1970 levels, which means that they are down 76% from 1970 levels.
Ask the audience if they think the Caterpillar is now satiated?