Seven million. That’s roughly how many people are added to our planet's population each month. Such a staggering growth rate shines a bright light on resources like food, water, and energy. Will there be enough to go around? Our weekly series The Sustainables profiles the folks doing their part to ensure that there is.

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Legendary filmmaker in headlines for entertainment and environment.
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Why be hydrologically dense? #Knowyourwater!
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Water, water everywhere, but we’re wasting it.
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Filmmaker Isaac Brown examines a computer's end-of-life options.
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With our water reservoirs tapped like never before, we might have no choice but to fully embrace recycled pee into our liquid diets.
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Babe’s Farmer Hoggett says ‘That won’t do, that won’t do.’
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Dutch artist Richard Vijgen wins HeadsUP! Times Square Visualization Challenge.
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With enough ‘political will,’ the Jordan River could be taken off life support, says the Director of the Israeli Office of Friends of Earth Middle East.
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Will the ingenious electric bike solve the first mile, last mile conundrum?
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HeadsUP! winning design to premiere on March 12, 2012—World Water Day.
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The former Veep’s 24-hour climate change marathon is over—here’s what you missed and how you can take action.
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Forty-five percent of bottled water in America originates as tap water.
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Back to the Roots grows gourmet mushrooms from coffee grounds, proving that one man's waste is another man's wage.
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If you post a picture of your fully grown kit onto Back to the Roots' Facebook page, the company donates a kit and a sustainability curriculum to an elementary school classroom of your choice!
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Kat Fowler of 'Thank You for Seeing Me' thinks so.
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Each year, America uses 375 million tons of paper to make its cereal boxes. What a waste.
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Inside the company that invented sustainable, natural beauty products—in 1921.
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Recycled toilet paper company is a bottom-up solution to sanitation.
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Dell's Oliver Campbell talks bamboo and mushroom packaging.