When water temperatures get too hot, fish can become stressed or even die. In rivers, Atlantic salmon and other cold-water species sometimes escape the heat by flocking to cooler areas, which often arise near groundwater springs or relatively cool tributaries. Lots of work has been done to preserve and augment these naturally occurring refuges, said Smith, of Dalhousie University in Halifax, Canada, “but there hasn’t really been an emphasis or focus on if we can create cold-water habitat.”
Cyberattack on Florida water treatment plant raises alarms in Canada
Pinellas County Sheriff Bob Gualtieri told a news conference Monday that someone remotely accessed a computer for the City of Oldsmar water treatment system on Friday and briefly increased the amount of sodium hydroxide, also known as lye, by a factor of more than 100. The Tampa Bay Times said the chemical is used in small amounts to control the acidity of water, but it’s also a corrosive compound commonly found in household cleaning supplies such as liquid drain cleaners.