This week we bring you a special episode featuring a conversation between Christiana Figueres and Prime Minister Theresa May. In her final weeks in office, Mrs May has introduced a target of net zero emissions by 2050 for the UK. In this exclusive conversation, we discuss with her why she has chosen to make climate such an important part of her legacy, and what her hopes are for the impact this will have on the international stage. Plus, we discuss the recent decision of the UK and Italy to submit a joint bid to host the COP in 2020, a decision that effectively seals the decision that London will host the all important 2020 COP.