The Taiwanese government reports that experiments in potty-training pigs proved successful: a breeder of 10,000 pigs has established special pig “toilets” on the farm; the toilets were smeared with feces and urine to attract the pigs; within weeks, 95 percent of all pig waste was collected in the toilets, making the farm — as well as nearby rivers and fields — much cleaner; additional benefits: the cleaner farm helped reduce illness among the pigs and boosted their fertility by 20 percent

Florida’s Biscayne Aquifer has begun to run low and communities are exploring alternative sources of water as well as methods to stretch existing sources; the city of Pembroke Pines plans to inject treated sewage water 60 to 200 feet below ground directly into underground aquifers rather than use the existing practice of pumping treated water into nearby wetlands, lakes, or fields, where it will slowly trickle down into the aquifer over several months or years

New analysis shows that pathogens levels in municipal water have dropped since the implementation of federal regulations on treating sewage in 1993; these treatment guidelines have proven to be extremely effective with 94 percent to 99 percent of all pathogens in biosolids eliminated after wastewater treatment

UConn biologist Charles Yarish is turning his enthusiasm for seaweed into a new system for cleaning up waterways; Yarish’s most recent endeavor will use seaweeds to clean up pollution from human sources, as well as waste from fish and even people; this approach, dubbed extractive aquaculture or bioextraction, promises to use the physiological properties of seaweeds and other organisms to clean up excess nutrients in polluted areas, making them healthier, more productive, and more economically viable

Fresh water and reusable energy: humans are on a constant hunt for a sustainable supply of both; trouble is, water purification requires a lot of energy, while utility companies need large amounts of water for energy production; researchers from the University of Colorado Denver College of Engineering and Applied Science may have discovered an answer

The growing global shortage of water has led to a growing interest in desalination to produce fresh water from seas and estuaries; conventional desalination plants, however, consume large amounts of energy; the solution: a bug-powered desalination cell that takes salt out of seawater

Chinese officials say they have a found a solution to uninhabitable deserts of Xinjiang in west china: pump raw sea water thousands of miles from the coast to fill Xinjiang’s dried-up salt lakes and desert basins in the hope that it will evaporate and encourage rainfall over drought-stricken areas of northern and northwestern China; the sea water would be carried through a pipeline made of plastic and fiberglass; water experts have condemned the proposal

The soils in large areas of the Southern Hemisphere, including major portions of Australia, Africa, and South America, have been drying up in the past decade as a result of intensified “evapotranspiration” — the movement of water from the land to the atmosphere

Coal-waste disposal sites have contaminated drinking and surface water in 34 states; the sites released pollutants such as arsenic, selenium, lead and chromium into water sources on which both humans and farm animals depend; there could be a bigger problem yet: large coal ash-generating states like Alabama, Arizona, Georgia, Indiana, Ohio, Mississippi, Missouri, New Mexico, and Tennessee, require no monitoring by law at coal ash ponds, so the pollution of water by coal ash is not even monitored