The mayors of Bogotá and Rio de Janeiro sign the Clean Air Cities Declaration.
By signing, Bogotá and Rio de Janeiro commit to implementing ambitious new policies and regulations to address the top sources of air pollution within their city by 2025.
Air pollution
New Jersey passes bill to protect poor communities from pollution
The New Jersey Law will require the state’s Department of Environmental Protection to deny permit applications for a new project if it determines it will have a disproportionate impact on a certain community already facing environmental or health stressors.
46 countries sign the Montreal Protocol in historic move to restore the ozone layer
The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. It was agreed on 16 September 1987 and entered into force on 1 January 1989. The ozone treaty has since been ratified by 198 parties, making it the first universally ratified treaty in United Nations history.