Infographic: Plan to Change Lake Ontario Water Level Regulations Considered by Canada, U.S.

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Simulations using 20th-century climate data compare Lake Ontario…

Lake Ontario Water Level Plan Tests Attitudes Toward Environment

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Plan 2014, a proposal to alter lake levels and restore wetlands,…

Lawsuit Asks For Regulations To Address Underwater Oil Pipeline Spills

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National Wildlife Federation says federal agency has allowed…

The Forgotten Great Lake

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On Lake Ontario and the St. Lawrence River, COB reporter Codi Kozacek found that much is happening, but not many are looking.

EPA Clean Water Rule Meets Political Pushback

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Unlike previous eras, Congress has avoided adjusting the law to manage new conditions.

The Toledo Water Crisis, One Year Later

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Circle of Blue reporter Codi Kozacek summarizes the major steps taken to reduce toxic algae blooms in Lake Erie.

Line 5 Pipeline Task Force Highlights Weakness in Enbridge Management

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Pipeline owner criticized for lapses in inspection and disclosure.

Great Lakes Line 5 Oil Pipeline Safety Study Nears

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Michigan will reveal information about energy-transport network under the Straits of Mackinac.

Binational Lake Erie Phosphorus Targets Proposed to Curb Algae

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To limit toxic algae blooms, the United States and Canada will need to reduce nutrient pollution by 40 percent.

Lake Erie Toxic Algae Bloom Forecast Spikes

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After a slow start this spring, nutrient pollution accelerated over the past week in Lake Erie.

Toxic Algae Blooms Prompt Clean-Up Commitment from Great Lakes Governors

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State and provincial leaders act to end danger to Lake Erie, which has suffered from a resurgence of nutrient pollution and toxic algae outbreaks over the past decade.

Biggest Lakes in the World Under Pressure From Human and Environmental Threats

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Across continents and hemispheres, a growing list of human and environmental pressures threaten the world’s largest lakes, inhibiting their ability to supply water, drive economic activity, preserve biodiversity, and sustain communities.