Climate Change Pushes the World's Ice Beyond Its Safe Zone

Human civilization has flourished largely because the planet's cryosphere, the frozen parts of Earth, has remained stable. Burning fossil fuels, however, is raising the likelihood of accelerating and partly irreversible damage to these cold regions. The article indicates that the world's ice has already moved out of the range considered safe. The findings underscore how warming driven by emissions is threatening systems that have long supported human life. The concern centers on the potential for lasting changes that could not easily be reversed.