Lake Erie is a global treasure. And right now it’s under threat.

Every summer, runoff pollution from urban and agricultural lands is causing algae in Lake Erie to grow out of control, impacting the health of the lake and turning its waters a nasty shade of green. These algae blooms can suffocate fish, make water unsafe for drinking and swimming, keep tourists away, and put a dent in local economies.

We must act to reduce the amount of runoff pollution entering the lake. Together, we can help keep Lake Erie clean and not green.



We are working with other groups to  ensure that federal and Ontario governments take actions to keep algae-causing pollution out of Lake Erie.

view from behind a young boy fishing at sunset

What you can do:


Show your support for Lake Erie by adding your voice to a growing community of people standing with the lake.

Take Action!


We thought it was gone forever… we were wrong. Having been kept at bay since the 1970s, a toxic slime monster is once more invading Lake Erie!


Individuals can also help keep phosphorus out of our lakes and rivers. Download our tip sheet for some simple steps you can take.

North of Long Tail – A Documentary Photo Series Celebrating Lake Erie

North of Long Tail is a documentary photography project (by photographer Colin Boyd Shafer in collaboration with Environmental Defence) that shows the human side of Lake Erie. It shares 20 stories of people living on the north side of the lake.