Editorial: A helping hand for clean technologies

2019-03-02 09:13:05

ADVOCATES of unregulated free markets like to argue that consumer demand for clean technologies will solve our environmental problems. Developments in the US car industry might seem to be proving them right. The popularity of the Toyota Prius has prompted almost every other major manufacturer to develop hybrid or all-electric vehicles. If enough people buy them, these could save hundreds of millions of tonnes of carbon dioxide emissions in coming years (see “Born to be wired”). Yet look more closely,