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…
The Chinese capital of Beijing will raise water prices this year as an attempt to conserve its scarce water supply. Cheng Jing, the head of Beijing’s water-resources bureau, announced on May 10th the city would raise water prices within the next two months. This price hike will be the fifth one since 2001 in a bid to promote conservation.
We’ve all heard about the horrors of the genocide in Darfur, followed Nicholas Kristof’s evangelical Op-Eds, and seen the benefit concerts to raise money towards the cause. Perhaps some know too of the ethnic differences tinting much of the clash, know the history of relations between the Sudanese government and the Sudan Liberation Movement/Army. But few…
The Keeling Curve, a record of rising atmospheric carbon dioxide since 1958, is one of the most recognizable images in modern science. Despite its ubiquity, this iconic graph tells only half – or, more precisely, 57% – of the story. That’s because the other 43% of cumulative anthropogenic emissions haven’t made it to the atmosphere…
Too little water for too many people is a growing problem in poor countries–and in thriving suburban Rockland County, N.Y., just north of New York City. A new website, Water Resources in Rockland County, lays out the case, and neatly puts it into global context. The site is run by the Earth Institute’s Center for International Earth Science Information Network…
Since the first cases of swine flu, or H1N1, were reported in April, public health organizations, governments, media and the general public have spent much time and energy trying to understand and contain the virus. Responses have ranged from the serious (like the WHO’s declaration of a phase 5 pandemic alert) to the ridiculous (like…
Recently, New York Times reporter, Leslie Kaufman wrote an excellent story on an interesting and important video called “The Story of Stuff”. Kaufman writes that: “The video is a cheerful but brutal assessment of how much Americans waste, and it has its detractors… The video was created by Annie Leonard, a former Greenpeace employee and…
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…
Here on Columbia University’s Morningside Heights campus, at around Broadway and West 116th street, the surest signs of spring are all of the preparations for graduation now underway. Groundskeepers are planting new shrubs, and bleacher seats and tents are being assembled everywhere. Working in a place like this is both a joy and a privilege–…