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Rochester bets on geothermal to power a green future
Since June, construction workers in Rochester, Minn., have been drilling deep wells that will eventually be part of a large geothermal network meant to heat and cool multiple buildings downtown. These systems aren’t an option for every city. But in locations that have the right geologic conditions, it’s a climate-friendly way to heat and cool.
Around 5 p.m. Friday, dispatchers received emergency calls about two missing swimmers on Lipsett Lake in the town of Rusk, Wis., located about 115 miles northeast of the Twin Cities.  
Demonstrators call for investigation into conditions inside Stillwater state prison
The gathering followed a peaceful protest put on by close to 100 incarcerated people on Sunday to decry reduced shower, phone and recreation time, as well as dangerously hot rooms and poor water quality. 
Turkey has failed to persuade Russia to rejoin the Ukraine grain deal
In talks in Sochi, Russia, President Vladimir Putin rejected efforts by Turkish President Recep Tayyip Erdogan to revive a United Nations-backed deal to allow the safe passage of grain from Ukraine.
Fate of Sioux Falls zoo's taxidermy collection in limbo after arsenic discovery
The fate of the mounted lion, tiger, polar bear and gorilla that have long greeted visitors entering South Dakota’s largest zoo is grim after arsenic was found to be widespread in the taxidermy collection.
Study: Wildfire led to poorer water quality in northern Minnesota lakes
The study was the largest examination in North American history of how lakes responded to a single wildfire. The researchers found lakes in burned areas had higher levels of nutrients, sediment and dissolved carbon, likely the results of increased runoff.