To improve infrastructure management in anticipation of more frequent and intense flooding events, the USGS, in cooperation with the NPS, has developed multiple datasets that can help Acadia National Park’s natural resource managers identify the stream reaches and stream crossings (i.e. culverts and bridges) that have the highest potential for erosion and flood damage.

In addition to the report, USGS and NPS have created an online dashboard that enables users to click on a stream reach or crossing to view its erosion potential and flood vulnerability details.

Read the complete update from the USGS New England Water Science Center: HERE

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The plan is available for download: HERE

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Highlights from the Year

• In 2025, the Gulf of Maine experienced its 15th warmest sea surface temperature (SST) year on record (51.3°F; +0.74°F above normal).
• Bottom temperature (BT) ranked as the 11th coolest year on record (-0.38°F below normal), marking a notable surface-bottom contrast.
• Surface warming was strongest during late summer and early fall, with three marine heatwave events between July and October, while bottom temperatures remained relatively cool and did not reach extreme thresholds.
• Long-term trends continue to show rapid warming in the Gulf of Maine, nearly triple the global ocean average at the surface, with the strongest warming occurring during the stratified summer months.

The complete 2025 report is available on the Gulf of Maine Research Institute’s website: HERE

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View the MOU here: Memorandum of Understanding

View the media releases here:

• Massachusetts media release
• Nova Scotia media release

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This report and details about additional planned updates are available on the NH Department of Environmental Services website: HERE

The post New Hampshire Updates Coastal Flood Risk Summary appeared first on Gulf of Maine Council on the Marine Environment.

In the fall of 2025, the Department of Environment and Local Government hosted two coastal expert engagement sessions with more than 100 participants. The first session focused on information gathering and sharing, while the second explored key challenges and practical solutions to reduce coastal risks impacting natural, built, and socioeconomic systems. A summary of feedback received from these discussions and details about future public engagements planned for 2026 are available: HERE.

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The Executive Summary and complete Final Plan are available on the MA CZM website: here

The post Massachusetts Releases ResilientCoasts Final Plan appeared first on Gulf of Maine Council on the Marine Environment.

The Gulfwatch program conducted a transboundary chemical contaminants monitoring effort through the collection of blue mussels (Mytilus edulis) at rotating sites across all Gulf of Maine jurisdictions—Nova Scotia, New Brunswick, Maine, New Hampshire, and Massachusetts. Samples were collected between 1993 and 2012. The preservation of this unique collection provides an invaluable opportunity to:

• gain a regional perspective on the distribution and concentrations of toxic contaminants,
• establish a critical baseline for future monitoring efforts, and
• improve understanding of threats to environmental quality in the coastal waters of the Gulf of Maine and Bay of Fundy.

Researchers interested in accessing archived samples must submit a research proposal to the Gulfwatch Archive Steering Committee in accordance with the proposal guidelines outlined in the Gulfwatch Management Plan.

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