This week on Breakfasters, Professor Ary Hoffmann drops by to discuss the threat of climate change and how it's measured. Josh Earl calls in to talk about the live show of his podcast "Don't You Know Who I Am," which is raising money for the Indigenous Literacy Foundation and is sure to be well-attended by 'J-earl Scouts.' Sarah, Jeff and Geraldine talk about why they dislike the term bucket list and the experiences most people put on them, and the inevitability of talking about how hot it is on a hot day. And US comedian Iliza Shlesinger joins the team to talk about her new show "Elder Millennial Tour" about what it was like to grow up when Nintendo graphics were just coloured blocks.