Today is World Water Day, a good reminder that here in the United States we must learn to preserve this precious resource.

The United States is one of the world's biggest users of water. A single American can use as much water as 900 Kenyans. As a result, water resources in the United States are shrinking.

In the last five years, there have been water shortages in almost every part of the country, including the worst drought in at least 25 years, which hit 80 percent of the country's farmland in 2012. This year, at least 36 states are expecting local, regional, or statewide water shortages, even if the drought doesn't persist.

Here are five steps you can take to save water in the United States:

1. Eating a little less meat. Switching from a meat-centered weekly menu to a diet rich in vegetables and grains could save 2,500 liters of water a day. And eating grass-fed and locally raised meat, eggs and dairy products can also save water.

2. Steam veggies instead of boiling. In general, steaming vegetables uses less water than boiling, and according to a study in the Journal of Food Quality, it is more nutritious. For example, boiling corn on the cob in a large pot may use 6-8 quarts of water, whereas steaming only uses 1-2 quarts. If you must boil, save the water for your garden or soup stock, or use it to clean pots.

3. Provide support for small-scale, family farms. Agricultural subsidies in the United States disproportionately support large-scale agribusinesses over the small-scale producers who are more likely to be engaged in sustainable food production and may be challenged by drought or commodity price fluctuations. Changes in government support services could reduce this deficit and improve food and water security.

4. Streamline water use in home gardens. During the summer months, the Environmental Protection Agency reports that nearly 40 percent of household water is used for watering lawns and gardens. National Geographic suggests incorporating native plants into your garden that are adapted to the local climate and often require less water. Manually watering plants, instead of using automatic sprinklers, cuts water use by 33 percent, according to the EPA. Consumers can also buy self-watering planters or construct rain barrels that can save you up to 1,300 gallons of water.

5. Reduce food waste. The U.N. Food and Agriculture Organization reports that nearly one-third of all food produced for human consumption is wasted throughout production, storage, transportation, consumption and disposal.

It's more important than ever that, on this World Water Day, Americans find ways to save every drop.