SCIENCE April 2011 saw the worst day of U.S. tornadoes since 1974, and a new analysis points to fires in Central America as part of the cause. (National Geographic News) Create your own “perfect storm” of a tornado using our Forces of Nature interactive. Teachers, scroll down for a short list of key resources in our Teachers’ Toolkit. DISCUSSION IDEAS Read through the Nat Geo … Continue reading Where There’s Smoke, There’s . . . Tornadoes?