In this second review episode, Jonathan Levy shares his exclusive interviews with world-leading authorities on climate change and the impact of greenhouse gases which continue to increase: World Meteorological Organization Secretary General Petteri Taalas; One of the authors of the latest climate change report from the IPCC (International Panel on Climate Change) June-Yi Lee, IBC Centre for Climate Physics, Associate Professor at the University of Pusan, South Korea; Dr Robert Mulvaney, Science Programme Coordinator at the British Antarctic Survey - leader of the Ice Dynamics and Palaeoclimate Team. Global temperatures continue to rise to record levels and the melting of ice at the poles and glaciers elsewhere is impacting on Sea Level Rise. At current levels, global warming could be almost double the target of 1.5 degrees above pre-industrial levels by 2050. Sea level rise by the end of the century could be well above initial projections. This podcast opens with comments from UN Secretary General António Guterres at the WMO press conference at COP26