New report of the United Nations Scientific Assessment Panel

Spread the love

The United Nations Scientific Assessment Panel published the quadrennial assessment report on the implementation of the Montreal Protocol.

This protocol is an international treaty on the control of ozone-depleting substances. About 99% of those banned substances are phased out. Thus, the ozone layer is predicted to recover over the Atlantic by 2066, over the Arctic by 2045, and by 2040 in the rest of the world. The Montreal Protocol also seems to impact global warming, as it is estimated to reduce the predicted temperature rise by 0.3–0.5°C in the year 2100.

The 2022 Assessment Report is available here:

Environmental Effects of Stratospheric Ozone Depletion, UV Radiation, and Interactions with Climate Change: 2022 Assessment Report

A supplement useful for teaching and popularization of science purposes has also been published:

Questions and Answers about the Effects of Ozone Depletion, UV Radiation, and Climate on Humans and the Environment

Leave a Reply