Articles by Sarah K. Burkhalter
Sarah K. Burkhalter is Grist's project manager.
All Articles
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A cool technology, and fun-sounding to boot.
So, like, this is cool and stuff:
A water desalination system using carbon nanotube-based membranes could significantly reduce the cost of purifying water from the ocean. The technology could potentially provide a solution to water shortages both in the United States, where populations are expected to soar in areas with few freshwater sources, and worldwide, where a lack of clean water is a major cause of disease.
The new membranes, developed by researchers at Lawrence Livermore National Laboratory (LLNL), could reduce the cost of desalination by 75 percent, compared to reverse osmosis methods used today, the researchers say. The membranes, which sort molecules by size and with electrostatic forces, could also separate various gases, perhaps leading to economical ways to capture carbon dioxide emitted from power plants, to prevent it from entering the atmosphere.
Cleans up water, works against climate change. An amazing technology indeed. And will it come into widespread use anytime soon? My Magic 8 Ball (which always tilts toward skepticism) is skeptical.
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The separation of economy and environment is a myth.
New head of the United Nations Environment Program Achim Steiner:
"Care for the environment is often portrayed as detrimental to economic growth," he told on his first day as head of the United Nations' top environment body.
"We hope to lay that myth to rest in the 21st century," he said by telephone from UNEP headquarters in Nairobi, setting out priorities for a four-year term.
Common sense ... I like it.
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China can pollute and dam all at once!
China has experience with spilling toxics into rivers: it's done it just recently in the Songhua, the Xiangjiang, the Yellow, and the Yangtze.
And China really loves dams; oh, does it heart dams.
So I guess this shouldn't be surprising:
Chinese authorities tried to slow the spread of a toxic spill by building 51 makeshift dams along the tainted river and using fire trucks to pump out polluted water before it reaches a reservoir serving a city of 10 million people, state media said Friday.
The spill of 60 tons of coal tar into the Dasha river in north China's Shanxi province was the latest in a series of mishaps fouling the country's already polluted waterways. Officials said there have been at least 76 water pollution accidents in the last six months.
Nope, not surprised. Just depressed.
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What you can do.
Protestors at L.A.'s South Central farm were evicted yesterday:
It took authorities nearly eight hours to forcibly clear protesters from the farm. Officials bulldozed vegetable gardens and chopped down an avocado tree to clear the way for a towering Fire Department ladder truck so the final four protesters could be plucked from a massive walnut tree.
More bulldozing feels inevitable, but supporters haven't given up hope. What you can do (from a press release):