2011 event was three times larger than any previously recorded bloom
By Summit Voice
SUMMIT COUNTY — A record-breaking 2011 algae bloom — three time larger than any on record — in Lake Erie is a warning sign, as global warming is expected to generate more intense rainstorms that flush fertilizers from surrounding fields into the water.
The Lake Erie bloom was triggered by long-term agricultural practices coupled with extreme precipitation, followed by weak lake circulation and warm temperatures, the researchers said, concluding that the lake will continue to experience extreme blooms unless agricultural practices change.
SUMMIT COUNTY — Runoff from agricultural and urban areas is speeding up ocean acidification in some coastal areas, adding to the woes resulting from increased concentration of atmospheric carbon dioxide.
Ocean acidification occurs when the ocean absorbs carbon dioxide from the atmosphere or from the breakdown of organic matter, causing a chemical reaction to make it more acidic. Species as diverse as scallops and corals are vulnerable to ocean acidification, which can affect the growth of their shells and skeletons. Continue reading “Environment: Excess nutrients speed up ocean acidification”→
Increasing bacteria growth adds to treatment challenges
By Summit Voice
SUMMIT COUNTY — Steadily climbing temperatures pose a significant threat to lake ecosystems, according to researchers with the University of Zurich.
Warming has led to increased stratification and inadequate turnover in Lake Zurich during the winter, causing persistent blooms of harmful cyanobacteria. In the case of Lake Zurich, the changes are threatening to undo recent of lake cleanup efforts, the scientists said.