Upmanu Lall, director of the Columbia Water Center, explains South Africa’s water shortage and why places in the U.S. could be at risk, too.
Water Archives - Page 2 of 63 - State of the Planet
Adding protective barriers around street trees could reduce load on city sewers, study finds.
The Columbia Water Center (CWC) is a leader in applying the science of water and climate to solve real world problems. With current events in mind, we worked with our partners to make progress on several key projects.
Human-influenced climate warming has already reduced rainfall and increased evaporation in the Mideast, worsening water shortages. Up to now, climate scientists had projected that rainfall could decline another 20 percent by 2100. But the Dead Sea cores suggest that things could become much worse, much faster.
Thousands of years before Biblical times, during a period when temperatures were unusually high, the lands around the Dead Sea now occupied by Israel, Jordan and surrounding nations suffered megadroughts far worse than any recorded by humans. Warming climate now threatens to return such conditions to this already hard-pressed region.
Plastic microbeads, common in soap, toothpaste and other consumer products, are flooding waters. A team from Lamont-Doherty Earth Observatory is doing the first large-scale assessment of their impact on New York’s waterways.
Now, nearing the end of our three-week cruise of the North Pacific off Hawaii, we are working to understand how these tiny bacteria connect and communicate with one another.
On March 2, 2017, Tanzania banned all exports of unprocessed gold and copper concentrates. The measure was taken in order to force companies to set up in-country processing of raw materials, with hopes of fostering the development of a smelter in the country.
O’Brien is just one of thousands of small communities in the United States that struggle to find the resources to ensure that the water coming out of the tap is safe to drink. The budget proposal by the Trump administration will only make matters worse.
Kartik Chandran, an environmental engineer at Columbia, will discuss some of his urban wastewater treatment projects at a panel discussion Friday following the screening of a new film about Rio de Janeiro’s Guanabara Bay.