Speaking for Yale Climate Connections, a multimedia service providing daily broadcast radio programming and original web-based reporting, commentary, and analysis on the issue of climate change, Ralph Cavanagh of the United States Natural Resources Defense Council, comented: "When I started my work in the seventies, everyone assumed that in order for economic growth to occur, energy use had to grow just as fast or faster. And on that logic, a healthy and growing economy meant an inexhaustible appetite for giant new polluting power plants. Coal and nuclear were the typical orders of that time.