The drought that has hit the United States and other grain-producing nations could be global warming or just a one-season aberration. But while weather fluctuates year to year, global population doesn't. And that means that feeding 9 billion mouths by 2050 will require unprecedented effort.
Mega-dams and massive government-run irrigation projects are not the key to meeting world’s water needs, a growing number of experts say. For developing nations, the answer may lie in small-scale measures such as inexpensive water pumps.
Applying known technologies and changing old practices could make a big difference in ensuring an adequate water supply for both agriculture and cities, one expert says.
A prison sentence for a Congolese warlord. A court ruling for a Chadian dictator to be tried for torture. Some 67 years after Nuremberg trials, international courts and tribunals are making their mark.