Environment & Climate

Microplastics—tiny plastic particles less than 5 millimeters in diameter—have become ubiquitous contaminants in global water supplies, including drinking...

The Great Lakes represent one of Earth’s most remarkable freshwater ecosystems, containing approximately 20 percent of the world’s surface...

Canada’s ecosystems face unprecedented challenges from invasive species that threaten biodiversity, agricultural productivity, and economic...

Permafrost, permanently frozen ground that has remained locked in ice for thousands of years, covers approximately 23 percent of Earth’s land...

Earth is experiencing a biodiversity crisis of unprecedented proportions, with species extinction rates approximately 1,000 times higher than background...

Ocean acidification represents one of the ocean’s most pressing challenges, resulting from the absorption of excess carbon dioxide produced by human...

Light pollution—the excessive or inappropriate artificial lighting of the night environment—has emerged as a pervasive but often overlooked environmental...

Canada’s Arctic region experiences climate change at roughly twice the rate of the global average, a phenomenon known as Arctic amplification. This...

Global coral reefs face an unprecedented crisis, with approximately 50% of the world’s coral reefs already degraded or destroyed. Rising ocean...

Discover the world's cleanest air countries including Nordic nations, New Zealand, and Singapore. Learn policy approaches that maintain pristine atmospheres.