"OK maybe it's happening, but it's not a big deal"
"OK maybe it's a big deal, but we didn't do it"
"OK maybe we did some of it, but we can't fix it alone"
"OK maybe we could do something but, that would put us at a disadvantage"
"OK maybe we all need to do something, but how can we coordinate such a thing?"
"OK maybe we could coordinate, but it would take 50 years to see any improvement"
"OK it's too late, but at least some of us have made alternate plans for ourselves and our families"
"OK I guess that's not how society and economy work, but how could we have known better?"
...
Silly humans.