As the global population grows--and freshwater supplies dwindle--ensuring that everyone has sufficient supplies of life-giving H2O has become an enormous challenge. Here's how to start.
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Features
Top 10 Water Wasters: From Washing Dishes to Watering the Desert
The many ways we squander water, from unintentional leaks to outright negligence
Slide Show
A Six-Point Plan to Avert a Global Freshwater Crisis
Policymakers need to figure out how to supply water without degrading the natural ecosystems that provide it.
Ask the Experts
Why don't we get our drinking water from the ocean by taking the salt out of seawater?
Peter Gleick, president of the Pacific Institute, distills an answer
Features
Freshwater Conservation: Drip by Drip
Doing small things consistently over time—if enough people participate—can make a dent, even in a global problem. Here are a few suggestions:
Features
Get Involved in Freshwater Conservation
To find out more about your local water situation, check in with your local water authority
Map
Freshwater Crisis Map: Current Situation
Lots of Water, but Not Always Where It Is Needed
Map
Freshwater Crisis Map: Looming Shortages
Models examining the effects of climate change and of population and economic growth on water availability by 2025 indicate that climate change alone will bring scarcity to many places.
The Editors Recommend
Scientific American Magazine
Growing More Food With Less Water
If the world hopes to feed its burgeoning population, irrigation must become less wasteful and more widespread
Scientific American Magazine
The Challenge of Sustainable Water
Water supplies around the world are already severely stressed. Population growth and global warming will only worsen those problems
News
New Menu Item on Space Station: Drinking Water Made from Recycled Urine
NASA works to develop more efficient systems to convert urine and cabin condensation into potable water for long missions to the moon or Mars
From the Archive
Scientific American Magazine
February 2001 Issue
Making Every Drop Count
We drink it, we generate electricity with it, we soak our crops with it. And we're stretching our supplies to the breaking point. Will we have enough clean water to satisfy all the world's needs?