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
Program and System Information Protocol Program and System Information Protocol The Program and System Information Protocol (PSIP) is the MPEG (a video and audio industry group) and privately defined program-specific information originally defined by General Instrument for the DigiCipher 2 system and later extended for the ATSC digital television system for carrying metadata about each channel in the broadcast MPEG transport stream of a television station and for publishing information about television programs so that viewers can select what to watch by title and description. PSIP defines virtual channels and content ratings, as well as electronic program guides with titles and (optionally) descriptions to be