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> Earth has changed drastically with all the humans on it. do you have earth scale measures for this? what is your threshold for drastic? on most measures I
by jpadkins 8y ago
> Earth has changed drastically with all the humans on it.
do you have earth scale measures for this? what is your threshold for drastic?
on most measures I can think of, earth is pretty much the same as it was 100k years ago. maybe you are suggesting humans have a drastic impact on other species on earth?
- ItsMe000001 8y agoGeologically it is the same, a stone is a stone, true that. The creatures on it, both plants as well as animals, changed drastically by human intervention. Example: https://mic.com/articles/84681/this-is-exactly-how-much-weight-humans-take-up-on-earth-compared-to-other-animals https://mic.com/articles/84681/this-is-exactly-how-much-weig... (it's for this xkcd: https://xkcd.com/1338/ https://xkcd.com/1338/) Then there's the pollution, for example plastics (tiny particles) everywhere, example: https://www.theguardian.com/environment/2017/sep/06/plastic-fibres-found-tap-water-around-world-study-reveals https://www.theguardian.com/environment/2017/sep/06/plastic-... We change(d) the atmosphere, from pollutants to CO2 levels. Land for agriculture: https://data.worldbank.org/indicator/AG.LND.AGRI.ZS https://data.worldbank.org/indicator/AG.LND.AGRI.ZS -- much of it is to support livestock https://news.nationalgeographic.com/2016/08/human-footprint-map-ecological-impact/ https://news.nationalgeographic.com/2016/08/human-footprint-...
- mr_luc 8y agoAlso, an up to 80% reduction in the biomass of fish stocks over the course of the past couple of centuries.