Countries like Poland, Vietnam, and Chile, which rely heavily on coal, the biggest contributor to global warming, are pledging to move away from it. More than 40 countries have signed up to a declaration to stop using fossil fuel, and the UK government says 190 nations and organizations have pledged to stop using it. “The end of coal is in sight,” says Commerce Secretary Kwasi Kwarteng. But some of the world’s largest coal-dependent countries, including Australia, India, China and the United States, did not sign up, creating “glaring gaps,” according to shadow trade secretary Ed Miliband. There’s also nothing about moving away from oil and gas, he adds.