Oliver Mason’s letter introduces per-capita emission figures: the UK at 4.5 tonnes, China at 8.7, the United States at 14.2, India at 2.2, and Vietnam at 3.7, arguing that exempting small emitters would shift the burden to larger but poorer industrialising nations. Katie Williams notes the UK’s Climate Change Act 2008 was a legislative first, while pointing out that domestic emission accounts omit imports and assign disproportionate weight to aviation; Molly Berry invokes the recent heatwaves and a Joint Intelligence Committee report that frames climate breakdown as a national security problem, proposing the term “secure future plan” in place of net zero.