This year, Americans will spend around $9.8 billion on bottled water, according to the Beverage Marketing Corporation.
Ounce for ounce, it costs more than gasoline, even at today's high gasoline prices; depending on the brand, it costs 250 to 10,000 times more than tap water. Globally, bottled water is now a $46 billion industry.
When we buy a bottle of water, what we're often buying is the bottle itself, as much as the water. We're buying the convenience--a bottle at the 7-Eleven isn't the same product as tap water, any more than a cup of coffee at Starbucks is the same as a cup of coffee from the Krups machine on your kitchen counter. And we're buying the artful story the water companies tell us about the water: where it comes from, how healthy it is, what it says about us. Surely among the choices we can make, bottled water isn't just good, it's positively virtuous.
Except for this: Bottled water is often simply an indulgence, and despite the stories we tell ourselves, it is not a benign indulgence. We're moving 1 billion bottles of water around a week in ships, trains, and trucks in the United States alone. That's a weekly convoy equivalent to 37,800 18-wheelers delivering water. (Water weighs 81/3 pounds a gallon. It's so heavy you can't fill an 18-wheeler with bottled water--you have to leave empty space.)
Meanwhile, one out of six people in the world has no dependable, safe drinking water. The global economy has contrived to deny the most fundamental element of life to 1 billion people, while delivering to us an array of water "varieties" from around the globe, not one of which we actually need. That tension is only complicated by the fact that if we suddenly decided not to purchase the lake of Poland Spring water in Hollis, Maine, none of that water would find its way to people who really are thirsty.
In 1976, the average American drank 1.6 gallons of bottled water a year, according to Beverage Marketing Corp. Last year, we each drank 28.3 gallons of bottled water--18 half-liter bottles a month. We drink more bottled water than milk, or coffee, or beer. Only carbonated soft drinks are more popular than bottled water, at 52.9 gallons annually.
We buy bottled water because we think it's healthy. Which it is, of course: Every 12-year-old who buys a bottle of water from a vending machine instead of a 16-ounce Coke is inarguably making a healthier choice. But bottled water isn't healthier, or safer, than tap water. Indeed, while the United States is the single biggest consumer in the world's $50 billion bottled-water market, it is the only one of the top four--the others are Brazil, China, and Mexico--that has universally reliable tap water. Tap water in this country, with rare exceptions, is impressively safe. It is monitored constantly, and the test results made public. Mineral water has a long association with medicinal benefits--and it can provide minerals that people need--but there are no scientific studies establishing that routinely consuming mineral water improves your health. The FDA, in fact, forbids mineral waters in the United States from making any health claims.
And for this healthy convenience, we're paying what amounts to an unbelievable premium. You can buy a half- liter Evian for $1.35--17 ounces of water imported from France for pocket change. That water seems cheap, but only because we aren't paying attention.
In San Francisco, the municipal water comes from inside Yosemite National Park. It's so good the EPA doesn't require San Francisco to filter it. If you bought and drank a bottle of Evian, you could refill that bottle once a day for 10 years, 5 months, and 21 days with San Francisco tap water before that water would cost $1.35. Put another way, if the water we use at home cost what even cheap bottled water costs, our monthly water bills would run $9,000.
There is one more item in bottled water's environmental ledger: the bottles themselves. The big springwater companies tend to make their own bottles in their plants, just moments before they are filled with water--12, 19, 30 grams of molded plastic each. Americans went through about 50 billion plastic water bottles last year, 167 for each person. Durable, lightweight containers manufactured just to be discarded. Water bottles are made of totally recyclable polyethylene terephthalate (PET) plastic, so we share responsibility for their impact: Our recycling rate for PET is only 23%, which means we pitch into landfills 38 billion water bottles a year--more than $1 billion worth of plastic.
This is compounded by growing studies which conclude that as global warming heats the planet, changing weather patterns will leave millions of people without dependable supplies of water for drinking, irrigation and power.
As the air gets warmer, there will be more water in the atmosphere. That's settled science. But where, and when, it comes down is the big uncertainty. The hydrologic cycle will intensify. Where the atmosphere is configured to have high pressure and droughts, global warming will mean long, dry periods. Where the atmosphere is configured to be wet, you will get more rain, more gully washers. Global warming will intensify drought, and it will intensify floods.
Global warming threatens water supplies in other ways. Much of the world's fresh water is in glaciers atop mountains. They act as mammoth storehouses. In wet or cold seasons, the glaciers grow with snow. In dry and hot seasons, the edges slowly melt, gently feeding streams and rivers. Farms below are dependent on that meltwater; huge cities have grown up on the belief the mountains will always give them drinking water; hydroelectric dams rely on the flow to generate power.
But the atmosphere's temperature is rising fastest at high altitudes. The glaciers are melting, initially increasing the runoff, but gradually getting smaller and smaller. Soon, many will disappear. This opens the possibility of geographical conflicts over water rights.
The potential for conflict is more than theoretical. Turkey, Syria and Iraq bristle over the Euphrates and Tigris rivers. Sudan, Ethiopia and Egypt trade threats over the Nile. The United Nations has said water scarcity is behind the bloody wars in Sudan's Darfur region. In Somalia, drought has spawned warlords and armies.
Already, the World Health Organization says, 1 billion people lack access to potable water. In northern China, retreating glaciers and shrinking wetlands that feed the Yangtze River prompted researchers to warn that water supplies for hundreds of millions of people may be at risk.
Bottled water is not a sin. But it is a choice.
Packing bottled water in lunch boxes, grabbing a half-liter from the fridge as we dash out the door, piling up half-finished bottles in the car cup holders--that happens because of a fundamental thoughtlessness. It's only marginally more trouble to have reusable water bottles, cleaned and filled and tucked in the lunch box or the fridge. We just can't be bothered. And in a world in which 1 billion people have no reliable source of drinking water, and 3,000 children a day die from diseases caught from tainted water, that conspicuous consumption of bottled water that we don't need seems wasteful, and perhaps cavalier.
More than 2.6 billion people, or more than 40 percent of the world's population, lack basic sanitation. The World Health Organization estimates that 80 percent of all illness in the world is due to water-borne diseases, and that at any given time, around half of the people in the developing world are suffering from diseases associated with inadequate water or sanitation, which kill around five million people a year.
Widespread illness also makes countries less productive, more dependent on outside aid, and less able to lift themselves out of poverty. One of the main reasons girls do not go to school in many parts of the developing world is that they have to spend so much time fetching water from distant wells.
Clean water could be provided to everyone on earth for an outlay of $1.7 billion a year beyond current spending on water projects, according to the International Water Management Institute. Improving sanitation, which is just as important, would cost a further $9.3 billion per year. This is less than a quarter of global annual spending on bottled water.
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