This is the summary slide from a recent powerpoint on the global challenges facing humanity between now and 2030. It sets out the key questions (easier to read if you click on the slide). The answers to any one of which might well be ‘no’, with scary consequences. And please don’t try and dismiss this as ill-informed climate alarmism. It’s from Prof John Beddington, chief scientific adviser to the UK Government and Head of its Government Office for Science. Full powerpoint here (but best to go make yourself a cup of tea while it downloads…..). [h/t Kate Raworth]