【英译汉必译题】This week and next, governments, international agencies and nongovernmental

【英译汉必译题】

This week and next, governments, international agencies and nongovernmental organizations are gathering in Mexico City at the World Water Forum to discuss the legacy of global Mulhollandism in water - and to chart a new course.

They could hardly have chosen a better location. Water is being pumped out of the aquifer on which Mexico City stands at twice the rate of replenishment. The result: the city is subsiding at the rate of about half a meter every decade. You can see the consequences in the cracked cathedrals, the tilting Palace of Arts and the broken water and sewerage pipes.

Every region of the world has its own variant of the water crisis story. The mining of groundwaters for irrigation has lowered the water table in parts of India and Pakistan by 30 meters in the past three decades. As water goes down, the cost of pumping goes up, undermining the livelihoods of poor farmers.

What is driving the global water crisis？ Physical availability is part of the problem. Unlike oil or coal, water is an infinitely renewable resource, but it is available in a finite quantity. With water use increasing at twice the rate of population growth, the amount available per person is shrinking - especially in some of the poorest countries.

Challenging as physical scarcity may be in some countries, the real problems in water go deeper. The 20th-century model for water management was based on a simple idea: that water is an infinitely available free resource to be exploited, dammed or diverted without reference to scarcity or sustainability.

Across the world, water-based ecological systems - rivers, lakes and watersheds - have been taken beyond the frontiers of ecological sustainability by policy makers who have turned a blind eye to the consequences of over- exploitation.

We need a new model of water management for the 21st century. What does that mean？ For starters, we have to stop using water like there"s no tomorrow - and that means using it more efficiently at levels that do not destroy our environment. The buzz- phrase at the Mexico Water forum is "integrated water resource management." What it means is that governments need to manage the private demand of different users and manage this precious resource in the public interest.