It’s on days like today – sunny, hot and humid – that make me very thankful for the shade that trees provide. I’ve got it down to a science how best to navigate the trip from the bus stop to my home. I know exactly which route has the most shade, when I need to cross the street, when I know I’ll be in the hot sun for a few minutes. The difference in temperature between shade and sun is amazing. By shading surfaces like asphalt, roofs, and concrete sidewalks, those surfaces don’t heat up and trap the heat, keeping temperatures lower.
I read about an experiment that NASA did in Huntsville, Alabama, recording the difference in temperature around a mall parking lot. The experiment showed that wherever trees were planted, temperatures were reduced by 17.2° C . Pretty amazing. There’s also a web site that has a slide show showing the changes in temperature over a period of nearly 20 years for Atlanta, Georgia, as trees were removed. It’s a very telling story.
I only know that I feel much cooler in the shade than in the sun!
Until next time!