Скачать или смотреть Climate Change Explained: The Crisis Facing Western Hudson Bay Polar Bears

This video explores the fundamental principles of climate change and examines its devastating impact on the Western Hudson Bay polar bear population. We define climate change as a rapid shift in global weather patterns and identify human activity—specifically the burning of fossil fuels, deforestation, and industrial agriculture—as the primary driver of the greenhouse effect. You will learn how greenhouse gases like carbon dioxide and methane trap heat in the atmosphere, leading to rising global temperatures that cannot be explained by natural solar or volcanic cycles.

We also take a closer look at the regional impacts in Manitoba, Canada, where accelerated winter warming is damaging northern infrastructure and reducing critical sea ice. The video highlights the plight of the Western Hudson Bay polar bears, a population that has declined from 1,200 in the 1980s to just 618 in 2021. Because these bears rely on sea ice as a hunting platform for seals, earlier spring melts and later fall freezes are forcing them to endure longer fasting periods on land.

The presentation concludes by discussing the severe consequences of this habitat loss, including declining body conditions, the destruction of maternity dens, and increased human-bear conflict in coastal communities. While local conservation efforts like the Polar Bear Alert Program are vital for safety, the long-term survival of this threatened species depends on global efforts to lower CO2 emissions

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