Greener than thou: the carbon tax contest

Labour’s climate change levy has led to lower emissions, says Elisabeth Jeffries, but can the Conservative alternative yield better results — or command business support?

There are many ways to eat a potato: chopped into chips and deep-fried, baked in the oven or slivered as crisps. Not many consumers care about the dozens of ways to cut down on the energy used to cook, store or produce it, such as buying a super-efficient freezer.