financing from the oil industry that has been decisive here. plus, the idea that the china won t do it so why should we? the united states and china have to make the g-2 agreement. two biggest emitters on the world and together we will shape the planet s future or not. we have to get it together and say we will go and the rest i think will join in. second, we need practical strategies. what to do. not just saying we are going to have these fancy systems that people don t understand. they want to know where is our power supply going to come from and what kind of cars are we going to drive? that is what this report helps to show. dr. jeffrey sachs, thank you so much. thank you. coming up on morning joe, crosby stills nash and young reunion on the tonight show covering one of the summer s hit songs. we will be right back. where are you going now here on will be compared to.
the way he wrote, challenged political morets, it made rock and roll grow up in a hurry. reporter: meanwhile, out of detroit came the young aretha franklin who demanded respect whether it is a chain of fools or respect, these songs become anthems and become anthems in a hurry. reporter: as the 60s progressed, the counterculture flourished and music was an inseparable part of it. the beatles, the doors and jefferson airplane explored psychodelia. other artists confronted racism and the vietnam war. graham nash of crosby stills nash and young remembers a sense of idealism. we felt like we could help change the world, that we could bring subjects to the minds of people that they never thought about. reporter: the decade was capped by an event that would come to define the entire era,