From a reader:

Subject: Ellen Goodman on global warming
Mr. Goldberg,
If youโ€™re looking for another whack at the pinata, consider the following
gem: โ€œThe certainty of the human role is now somewhere over 90 percent.
Which is about as certain as scientists ever get.โ€ This should be news to
anyone with high school biology, chemistry, or physics under their belt.

* Apologies to Brian Fontana.