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Changing weather and food scarcity


Sudden changes in weather patterns due to ongoing climate change are seriously impacting monarch populations, in both their wintering habitat and summer breeding grounds. Over the past two decades, monarch populations have dropped by more than 80 per cent.


Milkweed scarcity is also affecting the monarch’s survival. Along their route annual migratory route from Mexico to Canada, female monarchs stop to lay their eggs on milkweed plants. Milkweed is the only source of food for monarch caterpillars. Unfortunately, the milkweed plants that they rely on are disappearing, and along with them monarchs.

Monarch butterfly on swamp milkweed  WWF-US / Clay Bolt

Working with YOU to help save monarchs


As part of a conservation network across Canada, the United States and Mexico, WWF is fighting to protect forests, combat climate change and preserve the monarch’s migratory path. You can help monarchs rebound with a generous gift today. You can also help by planting milkweed and other pollinator-friendly plants in your backyard, rooftop garden or community green spaces.