CNBC's Bob Pisani spoke with Morningstar’s Jon Hale, MSCI’s Linda-Eling Lee and Main Management’s Kim Arthur. They discussed the world of ESG - environmental, social and governance - what's behind the boom in assets this year, what's ahead for 2021 and why all ESG funds aren't created equal. In the 'markets 102' portion of the podcast, Bob continues his conversation with Jon Hale from Morningstar,