The key to winning the climate debate isn’t economics: it’s health

The environment ranks low in polls of the public's fears, while sickness ranks top. Yet we will all get more ill as the planet heats

Arnold Schwarzenegger has the answer to tackling the climate emergency. Don't hype the economic damage, he says, just say we need to terminate pollution".

It may seem odd to pick the former bodybuilder and actor turned Republican politician as someone with the answer to the most important issue of the 21st century. But Schwarzenegger's focus on pollution as California's governor, and that of his successor, the Democrat Jerry Brown, means that since 2008, by wide agreement, the Golden State has enjoyed the longest economic expansion in its history, while also cutting emissions.