Technology11
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Cool tech: The ‘Savior Bud’ collects clean drinking water from trees
In dry areas of the world where access to clean drinking water is a matter of life and death, this novel design lets people get a little help from their plant friends. Yanko Design has developed the ‘Savior Bud’, which collects moisture directly from tree leaves during the natural transpiration cycle.
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Osmotic power — prospect of sustainable energy, or water liability?
Today, Statkraft, a company in Norway, opened the world’s first osmotic power plant—a model of a sustainable energy system which uses osmosis to harness the energy of fresh water’s natural movement toward salt water through a membrane. The idea for power generated through the movement of water, due to osmosis through a specially designed membrane,…
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Polar Survival a Century Ago: Good Planning, or Just Good Weather?
Before airplanes and satellite phones, polar exploration was a more dangerous undertaking than it is now. Many who set out for the frozen ends of the earth did not come back. Norwegian explorer Fridtjof Nansen and British explorer Ernest Shackleton were some of the few who brought their entire crews home safely. Nansen began his…
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Dark Side of Solar Has Light at the End of the Tunnel
As the United States searches for sources of alternative energy and a means to reduce its production of greenhouse gas (GHG) emissions, solar power plants have emerged as a leading candidate to address both of these problems. While these plants do indeed provide an additional means of producting energy that could potentially reduce the amount…
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Hawaii’ s homes go Green with solar hot water heaters
The grass may be greener in Hawaii, but now so are its houses. Solar powered hot water heaters are now replacing electric heaters that burn fossil fuels, and in the process release harmful carbon and other greenhouse gas emissions that contribute to global warming. Hawaiian Electric Company is heavily encouraging all home owners to convert…
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Seawater desalination: the solution?
Water is an increasingly scarce commodity in many parts of the world, and it seems seawater desalination is one of very attractive solutions available to these regions. Of all the Earth’s water, 94 percent is saltwater from the oceans and only 6% is fresh. If plenty and easily accessible seawater could turn into fresh drinking…
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A Cistern in NYC – Yes!
A cistern is not what you would expect to find in a NYC house; however, a brownstone in our backyard has its own rainwater collection cistern. The brownstone, billed as the “Greenest House in NYC” and the first residential property in Manhattan to receive the coveted LEED certification, was recently highlighted in Good Housekeeping Magazine.…
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Water Sensors – Saving Water in Irrigation
One of the largest uses of fresh water withdrawals in the United States is for irrigation. The USGS estimates that 60% of the worlds fresh water withdrawals is for irrigation purposes, which calculates to 137,000 million gallons per day used for irrigation purposes. Some of this water is for irrigation of crops, while other of…
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Green Infrastructure
Since May is American Wetlands Month, I want to highlight the use of constructed wetlands, or green infrastructure, as a way to manage or restore natural hydrologies to an ecosystem. The technologies mentioned below are not necessarily new or revolutionary. However, with the recent government emphasis on infrastructure and green projects, I think the scale…
Congratulations to our Columbia Climate School MA in Climate & Society Class of 2024! Learn about our May 10 Class Day celebration. #ColumbiaClimate2024