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Save the Date for the International Monarch Monitoring Blitz, 28 July to 6 August 2023

Mark your calendars for the 7th International Monarch Monitoring Blitz. Every year, thousands of people from across Canada, Mexico and the United States join efforts to support monarch butterfly conservation by collecting observations of monarch butterflies and milkweeds plants. Join this vital trinational initiative by sharing your sightings that happen from 28 July to 6 August 2023.

During this 10-day period, the #MonarchBlitz invites people across North America to look for monarchs and milkweed plants and examine them for monarch eggs, caterpillars and chrysalises. Blitz data are uploaded and shared with researchers via the Trinational Monarch Knowledge Network, a central repository that, in combining data from various sources, assists researchers in performing large-scale temporal and spatial analyses. The data collected by volunteers help researchers answer key questions about monarch butterfly and milkweed distribution, timing of reproduction, and the use of natural resources. In turn, this information helps conservationists identify and prioritize actions to conserve the species.

To take part in the Blitz, share your observations through one of the participating community science programs below:

Follow the Blitz and share your participation in this international conservation effort on social media by using the hashtag #MonarchBlitz!

The Blitz is organized by the Trinational Monarch Conservation Science Partnership, a collaboration of organizations, including the Commission for Environmental CooperationInsectarium/Montréal Space for LifeEnvironment and Climate Change Canada (ECCC), the Monarch Joint VentureJourney North, the US Fish and Wildlife Service, the Xerces Society for Invertebrate ConservationPROFAUNA AC/Correo Real Program, and Mexico’s Comisión Nacional de Áreas Naturales Protegidas (Conanp).

Learn more about what we accomplished together last year and learn how you can get involved here: http://www.cec.org/international-monarch-monitoring-blitz/.

Monarch Blitz 2023

About the CEC

The Commission for Environmental Cooperation (CEC) was established in 1994 by the governments of Canada, Mexico and the United States through the North American Agreement on Environmental Cooperation, a parallel environmental agreement to NAFTA. As of 2020, the CEC is recognized and maintained by the Environmental Cooperation Agreement, in parallel with the new Free Trade Agreement of North America. The CEC brings together a wide range of stakeholders, including the general public, Indigenous people, youth, nongovernmental organizations, academia, and the business sector, to seek solutions to protect North America’s shared environment while supporting sustainable development for the benefit of present and future generations

The CEC is governed and funded equally by the Government of Canada through Environment and Climate Change Canada, the Government of the United States of Mexico through the Secretaría de Medio Ambiente y Recursos Naturales, and the Government of the United States of America through the Environmental Protection Agency.

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