Paving paradise at the expense of trees

‘They paved paradise

“And put up a parking lot”

If you’re close to my age you’ll remember those lines from Joni Mitchell’s 1970 song, “Big Yellow Taxi.”

They came to me recently during my morning walk past a recently significantly expanded University of Iowa parking lot in what used to be a neighborhood of families, trees and wilderness enjoyed by all.

When it comes to the changes, as with so many other decisions, “it’s all about the money.” The rental income from a house full of students totals more than what a family can afford. And apparently somebody thought the income from 130 additional parking spaces would be well worth the loss of 30 trees (roughly four parking spaces per tree).

“They took all the trees

“Put 'em in a tree museum”

And so it came to pass that, without notice to neighbors (of which I’m aware), 30 trees were sawed into pieces, dug out, carried away and replaced with cars.

Those of us living in Cedar Rapids and Iowa City, our public officials and local organizations, have long been recognized for our understanding of trees’ importance. Cedar Rapids’ well-deserved recent $6 million federal grant is evidence of national recognition of our accomplishments.

The more we continue to learn about trees, like other seeming miracles of Nature (such as Brittney Miller’s recent page one turtles story), the humbler we should become.

Trees’ ancestry goes back 400 million years when ferns developed a vascular system enabling water and minerals to go up from the roots to the leaves, and food to go down from the leaves to the roots. From 200 to 56 million years ago there appeared ginkgo and pine, and ultimately maple and oak.

Trees can’t talk, but apparently they can communicate with, and care for, each other, sometimes over long distances, sending warnings of threats and sharing food (with mother trees favoring their offspring). If only Congress could do as well.

During World War II there was a saying, “Don’t just stand there, do pushups or something.” Well, trees don’t “just stand there.” They are a major ally in fighting climate change, each absorbing about 350 pounds of CO2 annually. I have to monitor the Air Quality Index. Trees improve it by trapping particulate pollution on leaves and bark. They produce oxygen. They help cool in summer and warm in winter by as much as 30 to 40 degrees, reducing air conditioning and heating bills. They improve our physical and mental health. They can reduce flooding, capturing 5,000 gallons a year.

And for those who still think “it’s all about the money,” trees can help attract businesses and tourists, and increase your property’s value by up to 15 percent.

For now, keep your eye on the expanding “tiny forest” movement. Clearly, more parking spaces and fewer trees are not the answer.

“Don't it always seem to go

“That you don't know what you've got

“Till it's gone”

Nicholas Johnson enjoys living under a large canopy of trees. Contact: mailbox@nicholasjohnson.org