At COP28 on Saturday, 50 oil and gas companies -- including industry giants ExxonMobil, Shell and BP -- pledged to reduce methane emissions to "near zero" by 2030. At the same time, the Biden administration announced new rules to enforce major elements of the agreement in the U.S. Fred Krupp, president of the Environmental Defense Fund, joins John Yang to discuss the importance of this deal. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders