The Myth of Environmental Tipping Points

The concept of “planetary boundaries” has become one of the most influential frameworks in modern environmental science—shaping global policy, corporate behavior, and public perception. But how solid is it, really? In this episode of Sanity Check, Dr. David R. Legates examines the origins of the planetary boundaries model and walks through each of its ten proposed limits—from climate change and biodiversity loss to ocean chemistry and chemical pollution. Along the way, he raises critica...