This post contains a pre-release extract for a new book by Danish economist Bjorn Lomborg in which he singles out New Zealand as a country whose current left-wing Government has committed it to a "zero carbon" economy that is unaffordable and will have no measurably material effect on climate behaviour by the end of the current century: "Given the expected temperature increase by around 2100, this means that New Zealand going net-zero by 2050 will postpone the warning that we expected to see on January 1, 2100, by about three weeks to January 23, 2100."