An irrigation pivot waters a corn field in Nebraska. Many farmers in Nebraska and Kansas rely on irrigation to water their corn fields. But the underground aquifer they draw from will run dry.
Clarence B. Jones this month in Palo Alto, Calif. As Martin Luther King Jr.'s attorney and adviser, Jones contributed to many of King's speeches, including his famous speech at the March on Washington in 1963.
Norbert von der Groeben/Reuters/Landov
Marine biologist Stefano Piraino thinks overfishing is one of the reasons jellyfish populations are growing. He said if you take fish out of the oceans, it leaves more food for jellyfish. The jellyfish here are known as Pelagia noctiluca, the mauve stinger.
Courtesy of Stefano Piraino/MED-JELLYRISK