UNESCO has decided not to label the Great Barrier Reef as 'in danger' which has environmentalists scratching their heads.

Also, Australian runner Peter Bol was cleared of doping charges, with Sports Integrity Australia finally dropping its seven-month investigation.

And classical music is trending with film soundtracks, study music and even trap beats all part of the classical comeback. Hack spoke to composers in their 20s who are making music.

Guests Jodie Rummer, reef scientist Kieran Pender, lawyer and sportswriter, The Guardian  Stéphanie Kabanyana Kanyandekwe, ABC Classic