Climate change and sustainability are still major topics at this week's UN General Assembly in New York. Australian iron ore company Fortescue Metals Group\xa0pledged yesterday to spend $6.2 billion to decarbonize by 2030. Joining the show to elaborate on this bold move is Fortescue Founder and Executive Chairman Andrew Forrest.\xa0\n\nAlso on today's show: With the Fed expected to announce yet another huge interest rate hike later today, we discuss its potential impact on the US stock market with CNN correspondent Marc Stewart.\nTo learn more about how CNN protects listener privacy, visit cnn.com/privacy\nLearn more about your ad choices. Visit megaphone.fm/adchoices