Thanks for replying so many days after this thread started, seems like you care enough to say something.  It&#x27;s gratifying.<p>I can&#x27;t tell if you are equating &quot;pollution is bad&quot; with &quot;earth will become uninhabitable&quot;.  Are you?<p>I agree 100% that pollution is terrible, and we should curtail it where we can without slowing down our technological advancement as a species too much.  That&#x27;s simply the responsible thing to do, and anyone that disagrees should visit China&#x27;s big cities and take a deep breath or go swimming in some algae plume ocean water.<p>But, the mental leap to &quot;imminent planet death&quot; caused by us at our current technology level is too far a leap for me to take.  The world and its systems are just too huge and humanity is too insignificant and primitive.<p>I contend the system is complex and we don&#x27;t have adequate models to simulate it.  And, the system is robust and can adjust to and absorb much larger disruptions than mankind can currently create.