meanwhile in the real world

* [defaunation](https://en.wikipedia.org/wiki/Holocene_extinction#Defaunatio...)
* [humans just 0.01% of all life but have destroyed 83% of wild mammals](https://www.theguardian.com/environment/2018/may/21/human-ra...)
* [humanity has wiped out 60% of animal populations since 1970, report finds ](https://www.theguardian.com/environment/2018/oct/30/humanity...)

We're currently seeing a global ecosystem collapse:

* [study finds ocean ecosystems likely to collapse in 2020s and land species in 2040s unless global warming stemmed](https://www.theguardian.com/environment/2020/apr/08/wildlife...)
* [studies show drought and heat waves will cause massive die-offs, killing most trees alive today.](https://insideclimatenews.org/news/24042020/forest-trees-cli...)
* [multiple overlapping crises could trigger 'Global Systemic Collapse'](https://www.sciencealert.com/hundreds-of-top-scientists-warn...)
* [246 academics call on government to act now to avoid global collapse ](https://www.nationalobserver.com/2020/02/04/opinion/246-acad...)
* [Planet's largest ecosystems collapse faster than previously forecast](https://phys.org/news/2020-03-planet-largest-ecosystems-coll...)

World's oceans are also acidifying [to a similar rate](https://en.wikipedia.org/wiki/Ocean_acidification#Rate) as the Permian extinction (but again in 100 years instead of 20k-60k), with an [anoxic event](https://en.wikipedia.org/wiki/Anoxic_event#Consequences
) locked in [after 1,000ppm or 360 gigatons](https://www.sciencedaily.com/releases/2017/09/170920182116.h...), which we will reach by 2100 at the latest. So that's whatever's left wiped out.

And here's what's currently happening with food production. Two different groups of 200+ scientists and academics, separately from each other, each warned of near-term global collapse:

* https://www.sciencealert.com/hundreds-of-top-scientists-warn...
* https://www.nationalobserver.com/2020/02/04/opinion/246-acad...

Examples of record-breaking crop failures currently happening:

* https://www.nationalgeographic.com/environment/2019/06/midwe...
* https://www.cnbc.com/2019/07/19/extreme-heat-wave-hits-us-fa...
* https://www.theguardian.com/australia-news/2019/may/15/austr...
* https://www.theguardian.com/environment/2018/jul/20/crop-fai...
* https://mobile.abc.net.au/news/2019-10-02/low-rice-crop-lead...
* https://www.telegraph.co.uk/global-health/climate-and-people...
* https://phys.org/news/2019-12-climate-whammy-corn-belt.html
* https://www.telegraph.co.uk/news/2019/11/12/britain-facing-p...
* https://weather.com/science/environment/news/2019-08-01-drou...
* https://phys.org/news/2020-01-atlantic-circulation-collapse-...
* https://phys.org/news/2019-12-climate-threat-global-breadbas...
* https://phys.org/news/2019-12-large-atmospheric-jet-stream-g...

Scientific studies projecting future crop failures:

* [Schlenker and Roberts, 2009. Nonlinear temperature effects indicate severe damages to US crop yields under climate change. PNAS, 106(37), pp.15594-15598](https://www.pnas.org/content/106/37/15594.full)
* [Mora et al, 2015. Suitable days for plant growth disappear under projected climate change: Potential human and biotic vulnerability. PLoS bio, 13(6), p.e1002167](https://journals.plos.org/plosbiology/article?id=10.1371/jou...)
* [Schauberger et al, 2017. Consistent negative response of US crops to high temperatures in observations and crop models. Nature Comms, 8, p.13931.](https://www.nature.com/articles/ncomms13931)
* [Sakschewski et al, 2014. Feeding 10 billion people under climate change: How large is the production gap of current agricultural systems?. Ecological modelling, 288, pp.103-111](https://www.researchgate.net/publication/263472623_Feeding_1...)
* [Liang et al, 2017. Determining climate effects on US total agricultural productivity. PNAS, 114(12), pp.E2285-E2292](https://www.pnas.org/content/114/12/E2285?collection=)

News articles about projected crop failures:

* [UN says passing 2C will have a 'very high projected risk' of global food supply instabilities](https://www.nbcnews.com/mach/news/climate-change-could-trigg...)

* [UN says passing 2C would cause 'multi-breadbasket failure'](https://www.nytimes.com/2019/08/08/climate/climate-change-fo...)
* [UN says passing 2C would cause 60% of global wheat to be subjected to 'Severe Water Scarcity (SVS)' drought events](https://www.commondreams.org/news/2019/09/26/new-research-wa...)