NASA Predicts a Mega Drought for America in 2075 NASA scientists used tree rings to understand past droughts and climate models incorporating soil moisture data to estimate future drought risk in the 21st century. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Is It Possible For Evolution To Reverse? How Does This Man Control The Surface Of This Lake With His Voice? Why Are The Planets In The Order They’re In? The Science of Implosion | MythBusters Facebook’s Huge Internet-Beaming Drone Takes Flight Are Crows the Ultimate Problem Solvers?