In the spirit of Thanksgiving, I wanted to highlight a few scientific and technological developments of the past year for which I am grateful. Let's start with a story I alluded to last week, the shrinking hole in the ozone layer. Changes to the ozone layer were first detected in 1974 and traced to human release of chlorofluorocarbons into the atmosphere. Because ozone helps to shield us from harmful radiation, an international agreement was reached in 1987 to eliminate chlorofluorocarbon usage. As a result of those … [Read more...] about Science Corner: Offering Thanks for Science & Technology