10 Climate Change Impacts On The Lake Champlain Basin
Thursday, June 10th, 2010Image: NASA
Remember when we were kids and we used to get lots more snow and cold in the winters? Remember when Lake Champlain water levels used to be lower and we would have larger beach areas? These are common questions I hear from my friends who grew up in Chittenden County, Vermont. Now there is scientific evidence to show that these are not just selective memories of the lake that covers 8,234 square miles and shares shoreline with Quebec and New York. The Nature Conservancy recently produced a 42 page peer-reviewed report, Climate Change In The Champlain Basin by J. Curt Stager and mary Thill that shows historical changes over time and predicts continuous changes in the Lake Champlain Basin ahead.
Image: glennfay49, flickr
Whether you live in Vermont or are one of the millions of tourists who enjoy the seasons, the lake is a centerpiece, a crown jewel with history and beauty. And it sustains humans and a vast ecosystem. But climatic changes underway, according to the NOAA, NASA and other organizations, will have a big impact on the way our children and grandchildren live and play.
The Nature Consrvancy used a new computer tool called ‘Climate Wizard’ to create models based on lots of data. Climate Wizard is a web-based tool developed in partnership with the Conservancy, the University of Washington and the University of Southern Mississippi, and it gives conservation practitioners and the public access to climate models and data developed by top climate scientists worldwide. Based on Climate Wizard models, the report offers moderate and extreme scenario predictions.
Here are some of the predicitions from the report:
-Lake Champlain’s water level has increased by 1 foot since the 1970s and the models predict another 1 to 2 foot rise..
-Ice cover on the lake has declined, with freeze-up occurring two weeks later, and the main lake often failed to freeze over. -Less ice and a warmer lake is predicted.
-Heavy rainfall events have increased and are expected to increase more in the coming decades.
-A moderate scenario prediction shows little change in annual precipitation, although the extreme scenario shows a 4 to 6 inch annual increase from today.
-Warmer surface temperatures overall for the state of Vermont and Champlain Valley.
-Declining drinking water quality for 200,000 people who get their water from and live in the Champlain basin
-Broadly changing habitat for many animals in wetlands and the lake ecosystem as the climate warms.
-Increase in the number of incredibly hot days during summer.
-More toxic (and even deadly) cyanobacteria (blue-green algae) in the lake as well as some invasive species, crowding out native species.
-Increased shoreline erosion and property damage.
Climate change is changing the lifestyle in the Champlain Valley and will change the way we live economically and recreationally. Would you like to read more about significant impacts and suggestions for researchers and policy makers to be proactive and plan for the future? Check out the pdf report: Climate Change in the Champlain Basin.


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