Description: Shows historic (up to 2007) and estimated future chlorine concentrations in the atmosphere. Historic concentrations are subdivided by source. CFCs emissions are the largest source, accounting for close to 50% of chlorine in the atmosphere by 2007.
Source info: Image from Australian Government Department of the Environment website (source CSIRO Marine and Atmosphere Research). Accessed on August 13, 2015.
An international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. The...