Your comments on the May 13, 2017, issue of Science News
A recent survey of lakes around the globe found that from 1985 to 2009, most warmed while only several cooled, Alexandra Witze reported in “In hot water” (SN: 5/13/17, p. 18). Rising temperatures have consequences for every part of a lake’s food web, from algae to walleye to freshwater seals.
“This article indicates that no pattern could be found to predict which lakes would warm (or cool) more rapidly than others,” reader Harold Paschal wrote. “Lake latitude and elevation were mentioned as criteria that were investigated. What about the lakes’ inputs? Would lakes fed by springs or mountain streams behave differently from