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CEC Receives Submission on the Deterioration of the Nazas River Lower Basin in the states of Durango and Coahuila, Mexico

September 3, 2025 SEM

Tiohtià:ke (Montreal), 3 September 2025 — Yesterday, Prodefensa del Nazas, A.C., an organization based in Mexico, filed a submission under Chapter 24 of the United States-Mexico-Canada Agreement (USMCA/CUSMA) with the Commission for Environmental Cooperation (CEC). The Submitter asserts that Mexico is failing to effectively enforce its environmental laws to protect the Nazas River, particularly its riverbanks and lower basin in the states of Durango and Coahuila.

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SEM Submission - Río Nazas

Media Releases

SEM Submission - Río Nazas
September 3, 2025 SEM

CEC Receives Submission on the Deterioration of the Nazas River Lower Basin in the states of Durango and Coahuila, Mexico

Tiohtià:ke (Montreal), 3 September 2025 — Yesterday, Prodefensa del Nazas, A.C., an organization based in Mexico, filed a submission under Chapter...

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Two vaquitas swimming
August 19, 2025 SEM

CEC Publishes Factual Record on the Effective Enforcement of Environmental Law Related to Submission SEM-21-002 (Vaquita Porpoise)

Tiohtià:ke (Montreal), 19 August 2025 — On August 18 the Secretariat of the Commission for Environmental Cooperation (CEC) published...

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July 25, 2025

North American Environment Ministers Reaffirm Commitment to Strengthen Environmental Cooperation

Mexico City (Mexico), 25 July 2025 — The top environmental officials from Canada, Mexico and the United States met...

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July 14, 2025 SEM

CEC publishes Factual Record on Hydraulic Fracturing in Nuevo Leon, Mexico

Tiohtià:ke (Montreal), 14 July 2025 — On 3 July 2025, the Secretariat of the Commission for Environmental Cooperation (CEC)...

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Join the Monarch Blitz
July 9, 2025

Small Actions, Big Impact: Support Monarch Butterfly Conservation by Sharing Your Observations!

Tiohtià:ke (Montreal), 9 July 2025 — The International Monarch Monitoring Blitz returns for its ninth edition from 25 July to 3 August 2025, inviting...

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GELP 2025
July 3, 2025

CEC Announces Second Cohort of Generation of Environmental Leaders Program (GELP)

Tiohtià:ke (Montreal), 3 July 2025 — The Commission for Environmental Cooperation (CEC) is thrilled to announce the second cohort of the...

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May 29, 2025 Council

North America’s Environmental Leaders to Convene in Mexico City on 24-25 July for CEC’s 32nd Council Session and JPAC Public Forum (#CEC32)

Tiohtià:ke (Montreal), 29 May 2025 — The Commission for Environmental Cooperation (CEC) will hold its 32nd annual Council Session and Joint Public...

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April 24, 2025 SEM

Sonora Railway Project: CEC Secretariat recommends the preparation of a factual record pursuant to USMCA/CUSMA chapter 24

Tiohtià:ke (Montreal), 24 April 2025—The Secretariat of the Commission for Environmental Cooperation (CEC) has notified the Council and the USMCA/CUSMA...

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North Atlantic right whale
January 22, 2025 SEM

Members of the CEC Council Authorize the Development of a Factual Record Regarding the North Atlantic Right Whale Submission

Tiohtià:ke (Montreal), 22 January 2025—The members of the Council of the Commission for Environmental Cooperation (CEC), in Council Resolution...

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