Swedish climate change activist Greta Thunberg has arrived in New York to make her point at the upcoming UN Climate Action Summit. The head of a global think tank echoes her message that climate change could spell the extinction of the human race. Following a report on how innovative technology may lead to a breakthrough in plastic recycling. Newsline In Depth presenter Aiko Doden talks with the co-President of the Club of Rome about the urgent need to address the climate emergency.