Labour would make all new homes zero carbon by 2022

Goldsmith Street in Norwich is made up of almost 100 ultra low-energy homes. Photograph: Graeme Robertson/The GuardianLabour would introduce tough new standards forcing housebuilders to make new properties zero carbon within three years, Jeremy Corbyn is to announce.The last Labour government introduced regulations to make all homes zero carbon by 2016, but the rules were scrapped by David Cameron less than a year before they were due to come into force.Now, Labour says it would create a new &ld