undefined | Better HN

story

0 pointsjpadkins7y ago0 comments

> 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?

0 comments

ItsMe0000017y ago

Geologically 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-weig... (it's for this xkcd: 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-...

We change(d) the atmosphere, from pollutants to CO2 levels.

Land for agriculture: https://data.worldbank.org/indicator/AG.LND.AGRI.ZS -- much of it is to support livestock

https://news.nationalgeographic.com/2016/08/human-footprint-...

mr_luc7y ago

Also, an up to 80% reduction in the biomass of fish stocks over the course of the past couple of centuries.

j / k navigate · click thread line to collapse