https://thenextweb.com/syndication/2019/10/08/how-earths-changing-climate-can-benefit-aspiring-mars-colonizers/

In a rare instance of environmental success, the United Nations has just announced it believes the damage to the Earth’s protective ozone layer will be fully restored by the year 2050. This stands in stark contrast to the increasing alarm over the climate emergency, caused by an increasing greenhouse effect.

Both the ozone layer and the greenhouse effect ultimately help control how much ultraviolet (UV) radiation from the sun reaches the Earth’s surface, and how much infrared (IR) radiation escapes to space. Both these forms of radiation have a critical impact on the habitability of a rocket planet.