The United States and Canada updated a binational pact that takes a more “prevention-oriented” approach to the Great Lakes than previous versions, Environmental Protection Agency (EPA) Administrator Lisa Jackson said Friday.

The Friday signing of an amendment to the Great Lakes Water Quality Agreement marks the first update to the effort in 25 years. It takes into account the effect new invasive species, such as the Asian carp, have had on the Great Lakes ecosystem as well as older concerns such as toxic chemicals.

The update also will also address issues associated with climate change, such as the proliferation of harmful algae and rising water temperatures that deplete oxygen and reduce water levels in the world’s largest freshwater source.