In reply to Al Evans:
Most people aren't directly impacted yet so I don't think many will view it as serious....or at least the lifestyle changes required to avert it worth the cost.
But should we all start feeling the pinch, and it to be consistently bad enough that there can be no doubt that this isn't just a climatic blip, change should come pretty fast (too late, but fast). Winging populations and room for unrest will result in a redirection of finances (or state force) one way or another.
While the human cost is real, as humans are the cause I'm less bothered. Its more the carnage we're afflicting under the oceans and to flora and fauna on land that frustrates me.