I like this meme:

1. Grab the nearest book.
2. Open the book to page 123.
3. Find the fifth sentence.
4. Post the text of the sentence in your journal along with these instructions.
5. Don't search around and look for the "coolest" book you can find. Do what’s actually next to you.

The book (really, I closed my eyes and reached left to the nearest shelf) is the IPCC's "Climate Change 1995." Page 123 is in the chapter on "Radiative Forcing of Climate Change":

It would be highly desirable to determine the indirect GWPs associated with the ozone production for these gases.