extreme heat is absolutely baking the u.s. take phoenix where they have day 20 of over 110 degree heat in a row. the record temperature spikes around the world come amid increased calls for climate action. this is one a those times where you can find plenty of things that should fall back from our political scene to this climate change heat wave which brings us to our fallback segment with a twist. it s a takeover honoring the 50th anniversary of hip-hop this summer with the ingredients every rap set needs, the d.j. and the emcee. we re joined by d.j. caste. some might say he s your favorite president s favorite deejay. poeb tapped him to spin at both inaugurations, also the obama 50th birthday, and he deejayed the nearly hallowed ground of beyonce and jay-z s wedding. now he runs pass the mic, hitting the live stage at radio