自然与生物多样性
What Durban can teach the world about water
A decade ago, the South African city of Durban was facing severe water shortages. Dam reservoirs were decreasing at alarming rates, and were 20% lower than average levels. At least one in...
A decade ago, the South African city of Durban was facing severe water shortages. Dam reservoirs were decreasing at alarming rates, and were 20% lower than average levels. At least one in...
Closing more than 60 kilometers of major streets to car traffic sounds like a logistical headache for a city of 4.8 million. But Guadalajara, Mexico did it anyway—and has done it every Su...
