Aug. 27 (Bloomberg) -- With respect to the science of
climate change, many experts regard the Intergovernmental Panel
on Climate Change as the world’s authoritative institution. A
draft summary of its forthcoming report was leaked last week. It
describes the panel’s growing confidence that climate change is
real, that it is a result of human action, and that if the world
continues on its current course, it will face exceedingly
serious losses and threats (including a significant rise in sea
levels by century’s end).
While the draft report states these conclusions with
unprecedented conviction, they are broadly consistent with the
panel’s judgments from the past two decades, which raises an
obvious question: Why have so many nations (including China and
the U.S., the world’s leading greenhouse-gas emitters) not done
more in response?