<i>Action now is much, much cheaper.</i><p>Only if you pick the right action.  Doing something big and expensive now that turns out to have negligible effects or unintended consequences will lead to us not only exhausting resources now, but also  having to spend exactly the same in the future.<p>So while I agree that action now is important, let&#x27;s not fall into the trap of &quot;We most do something.  This is something.  Let&#x27;s do this&quot;.