As the world warms, the jet stream gets wacky and wavey. Regional temperature variations are be orders of magnitude higher than the global average change. Chang

As the world warms, the jet stream gets wacky and wavey. Regional temperature variations are be orders of magnitude higher than the global average change. Changing climate also means different new pests, funguses, bacteria, etc. Resulting droughts, floods, and famine are typically seen as bad things. These factors will contribute towards conflicts and wars. There will also be mass emigration from areas that become unliveable, on the order of hundreds of millions to billions, primarily towards "first world" nations. No matter how that plays out, it's bad. A disintegrating world order does not bode well for the global economic system on which current Western quality of life is built. Plus, some people care about nature beyond factory farms and concrete urban sprawl. That nature is most definitively getting fucked as life just can't adapt so rapidly.