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 pledged 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. 

Also 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.

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