Half the world's population lives below the poverty line, despite extreme free-trade policies that were supposed to "lift all boats." It's time to try something new.
In the not-too-distant future, demand for phosphorus could outstrip supply, playing out a familiar scenario of scarcity, price shocks, riots, starvation and war.
Bone-dry California eases restrictions on greywater use, allowing wastewater from washing machines and bathtubs to spill onto the state's lawns and lemon trees.
