Al Gore, who shared the 2007 Nobel Peace Prize for his campaign to awaken people to the climate change threat, said warmer temperatures could nullify much of the progress made in recent decades to heal the battered Great Lakes. Increasingly, severe storms made worse by greater volumes of water vapor in the atmosphere are causing wastewater treatment system overflows that dump raw sewage into the lakes, he said. That forces beach closures and promotes growth of algae blooms that create oxygen-deprived zones where fish can’t survive.
“We’re still acting as if it’s perfectly OK to use this thin-shelled atmosphere as an open sewer. It’s not
Gore said. “We need to listen to the scientists. We need to use the tried and true method of using the best evidence, debating and discussing it, but not pretending that facts are not facts.”
Gore, who shared the 2007 Nobel Peace Prize for his campaign to awaken people to the climate change threat, said warmer temperatures could nullify much of the progress made in recent decades to heal the battered Great Lakes.
Increasingly, severe storms made worse by greater volumes of water vapor in the atmosphere are causing wastewater treatment system overflows that dump raw sewage into the lakes, he said. That forces beach closures and promotes growth of algae blooms that create oxygen-deprived zones where fish can’t survive.
After largely disappearing as phosphorus discharges into the lakes were reduced decades ago, the algae problem has returned and is worse than ever in some places, primarily on Lake Erie. Smelly clumps of algae are fouling beaches on Lakes Michigan and Huron.
Gore’s critics have accused him of making exaggerated claims about climate change and cashing in on his activism through investments in green technology. But leaders of the International Joint Commission said his comments about the Great Lakes were based on findings of scientists in the region.
“He’s quoting what the researchers are saying,” said Ted Yuzyk, the Canadian co-chairman of an IJC group that plans to release a report next spring on how climate change is affecting the lakes. Researchers have found that heavy storms promote algae growth not only through sewage overflows, but also by washing greater amounts of nutrient-rich soils into the lakes, Yuzyk said.
Lana Pollack, who was appointed by President Barack Obama as the U.S. chairwoman of the commission, said: “There’s absolutely no doubt the challenges we face are greater and more confounding because of climate change.”
No comments:
Post a Comment