The Montreal Protocol Saved Our Ozone | Montpelier News

On this day in 1987, world leaders signed the Montreal Protocol — a historic pact to ban ozone-destroying CFCs. These chemicals, found in refrigerators and aerosols, were thinning Earth’s protective ozone layer, with one chlorine atom capable of destroying thousands of ozone molecules. The treaty launched in 1989 and has since evolved to cover nearly 100 harmful substances. NASA’s 2018 satellite data confirmed the breakthrough: chlorine levels are falling, and the Antarctic ozone hole is shrinking — proof that global cooperation can heal our planet. Listen in comfort: Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN: [email protected] This is an automated, high-level news summary based on public reporting. Sources: https://www.wcax.com/2026/09/16/this-day-weather-history-montreal-protocol-was-adopted/ More coverage & latest updates: https://sources.thednn.ai/e161b8e9e6d4ba9e Report issues to [email protected].