When the Guardian began reporting on the climate crisis 70 years ago, people were worried that warmer temperatures would make it harder to complain about the weather. Today it is the biggest challenge humanity has ever faced. In the second special episode marking 200 years of the Guardian, Phoebe Weston is joined by Jonathan Watts, Prof Naomi Oreskes and Alice Bell to take a look at climate coverage over the years, how our understanding of the science has changed and how our attitudes and politics have shifted. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>