The world’s climate is changing. The scientific evidence is incontrovertible: most of this change is due to human activity, and the process is speeding up as more and more carbon dioxide, methane and other greenhouse gases are pumped into the atmosphere. The next 10 years are critical. Carbon dioxide emissions must be cut rapidly. If they are, according to the Intergovernmental Panel on Climate Change, we may limit the rise in global temperatures to two degrees centigrade. But if we continue on regardless – and towns and cities contribute up to half of all emissions – the rise could be up to six degrees centigrade. This could trigger.
