We have to insulate Britain, but M25 protests don’t make the case for it | Gaby Hinsliff

No need to scream ‘Apocalypse!’ Showing we can make homes warmer and save cash is an easier way to bring people on boardIf anything was going to make me well up in public, I never imagined it would be the joys of insulation. Loft lagging does not gener…

Electric vehicles divide opinion as car-loving Germany goes to polls

Election has framed future of automobility as showdown between petrolheads and green zealotsThe second Steve Dumke spots a gap in the traffic on the road from Eggersdorf to Strausberg, his white Hyundai Ioniq lurches forward and nestles between two fas…

Electric vehicles have a rich past – and a richer future | Letters

Readers share their views on climate-friendly transportationYour long read had some interesting facts (The lost history of the electric car – and what it tells us about the future of transport, 3 August), but it is also worth drawing attention to the e…