[Red_Tarsius]

> So it's going to get warmer

The life cycle of countless animals and plants is finetuned to our current climate. Crops are also at the mercy of weather patterns. We have no idea whether our food sources will get through the changes. Example of unknown unknown: https://news.nationalgeographic.com/2018/01/australia-green-...

> What's the big deal?

We are talking about hundreds of millions of starving people moving away from the coastlines AND the Equator. Example: https://web.archive.org/web/20180107084251/https://blogs.sci... Bangladesh alone has half the population of the US.

[bigbugbag]

> We have no idea whether our food sources will get through the changes.

Actually we do, chances are temperature increase by the end of the century will make agriculture impossible in most part of the lands of the planet.

> What's the big deal?

Simply put, it is a matter of destroying the conditions favorable to human life on this planet.