International environmental agreement environmental cooperation, marine and the oceans, and meteorology. Canada has taken an initiative due to the country's variety of natural resources, climates and populated areas, all of which can contribute to environmental stress. The United States has committed to the Montreal Protocol on Substances that Deplete the Ozone Layer, and global negotiations on mercury. The number of MEAs in which the U.S. is involved is substantially lower than Canada's, despite its greater population and larger carbon footprint and economy. International environmental agreement An international environmental agreement or sometimes environmental protocol, is a type of treaty binding in international law, allowing
Montreal Protocol Antarctic Survey scientists Joe Farman, Brian Gardiner and Jonathan Shanklin published results of abnormally low ozone concentrations above Halley Bay near the South Pole. They speculated that this was connected to increased levels of CFCs in the atmosphere. It took several other attempts to establish the Antarctic losses as real and significant, especially after NASA had retrieved matching data from its satellite recordings. The impact of these studies, the metaphor 'ozone hole', and the colourful visual representation in a time lapse animation proved shocking enough for negotiators in Montreal, Canada to take the issue seriously. Also in 1985, 20 nations,