Keep in mind that our «guess» is based on our own reasoning, not empirical modeling. (carbonwa.org)
The cloud cover changes from the early 70s to the most recent measurements are «confounding factors» because the changes occurred concomitantly with other changes, which makes it hard for empirical model building techniques like the multiple regression you use for your csalt model to provide reasonably accurate, unbiased estimates of their effect sizes. (realclimate.org)
Scientists can combine these observations with empirical models of Earth's space environment and thus forecast space weather for the government, power companies, airlines, and satellite communication and navigation providers and users from around the world. (britannica.com)