Palm Beach Daily News: To keep track of climate change, scientists around the world employ some of the most sophisticated devices and machines found in the 21st century. Advanced theoretical models run on huge number-crunching computers, while thousands of miles up in space complex satellites examine every nook and cranny of our atmosphere. Still, sometimes scientists just need a rubber ducky. At least, that’s what Alberto Behar, a researcher from NASA’s Jet Propulsion Laboratory in California, used …