… U.S. market. Meanwhile, international efforts to prevent global warming had accelerated. A series of UN-sponsored conferences, bringing together the nations of the world, had … U.S. market. Meanwhile, international efforts to prevent global warming had accelerated. A series of UN-sponsored conferences, bringing together the nations of the world, had … U.S. market. Meanwhile, international efforts to prevent global warming had accelerated. A series of UN-sponsored conferences, bringing together the nations of the world, had …