So many thanks to everyone who has come to and made possible all the Sarn Helen events of the past two weeks – in Cardiff, Brecon, Hay, Crickhowell, Mold and Oswestry. Every event this week has been sold out. I’ve just been blown away by it all: the warmth, the kindness and, perhaps above all, the willingness of so many people to engage with the issues of the climate and ecological crisis. It does seem that there has been a sea change in attitudes sometime over the past few years, that it has now become possible to speak publicly of these things without the self-consciousness – even the shame – that could once so often be the case. Sometimes, these days, there can seem genuine grounds for hope.