Water reuse is a proven technology that can produce a drought-proof sustainable water supply. Yet historically, there has been some reluctance to adopt it here in the United States. Xylem commissioned a poll to try to better understand perceptions about recycled water in drought-stricken California. And the findings were eye-opening.
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With billions of dollars around the world being invested into carbon capture and storage, often in the energy sector, there are compelling questions to ask about when, where and for what purpose we use this technology.
Vast portions of the oceans contain low levels of the nutrients that normally sustain life. Yet these areas are not devoid of life. Once thought to be biological deserts, recent research has shown that such nutrient-poor marine systems could significantly contribute to the amount of carbon dioxide that is trapped into the deep ocean, influencing Earth’s climate.
The 17 Sustainable Development Goals adopted by all member states of the United Nations in September 2015 set an ambitious global sustainable development agenda. The goals span the three dimensions of sustainable development—economic development, social inclusion and environmental sustainability, underpinned by good governance. In order to operationalize this cross-cutting agenda in the varied contexts of both developed and developing countries, each nation will need to identify the key challenges to prioritize.
My German colleague and I could conceptualize five kilometers horizontally—the same as her bike ride to work, the same as the first ever race I ran. Neither of us could quite grasp what flipping 5 kilometers 90 degrees might mean, as our pump continued on its 3-hour vertical journey to that depth.
Being aboard a ship is isolating—but for a scientist, it’s not lonely.
Much of the eastern two-thirds of the United States was balmy on Christmas Day, with high temperatures more than 20°F above average from Texas to Maine. According to NOAA, 789 daily high temperature records were tied or broken on Christmas Eve and Christmas Day in the continental United States. What’s behind this unusual weather?
We’ve just completed our first full station and are remarkably pleased with the results. We collected 8 seawater samples to measure helium isotopes; 20 to measure thorium and protactinium isotopes; 7 in-situ pump filters; 1 box core of the ocean floor; and more.
With an abundance of time and a dearth of work, we have begun to devise ways of doing science before we can actually do science at sea. Among other things, we set up an imaging system to take pictures of particle filters we bring back from the deep sea.
The South Pacific Gyre is the most nutrient-poor region in the ocean, and the waters are the clearest in the ocean. The sediments accumulate below the water at rates as low as 0.1 millimeter per thousand years. So, 10 centimeters of seafloor are equivalent to one million years of material deposition in the South Pacific.