Anyway, it was not a nice thing to wake up to first thing this morning, for several reasons. As Dorothy Parker was wont to answer the phone whenever it rang, "What fresh hell is this?" It never ends...
First, was the video he included from the Union of Concerned Scientists promoting urban gardens. I don't want to denigrate the nice man who is planting trees in Chicago, but he repeats one of the common assertions that annoys me most - that planting trees is beneficial because they absorb our pollution! And they return good fresh oxygen! ...without ever wondering what happens to the tree when it absorbs pollution.
That's akin to saying it's nice that little children absorb pollution when they breathe, without ever wondering whether it gives them asthma! Furthermore, the trees crowns in the video are thin. You can see by the flowers - cone flower and Joe Pye weed - that it was produced in high summer, so the trees should be fully leafed out. And yet the crowns are thin, the sun is pouring through them, and the ground is littered with leaves that have fallen off.
|The film unwittingly captures trees that are damaged by ozone exposure. Those giant patches of sky visible in the crown are not normal, and are indicative of lost branches and leaves.|
This video, produced when Dr. Karnosky was still alive, (link in case it doesn't play here) tells you all you need to know about the "...sharks that smell blood in the water." Notice the speckled and shriveled leaves in the elevated ozone - exactly the way all leaves have been looking, everywhere, this past growing season!
Here is the video from the Union of Concerned Scientists from which the screen shots were taken: