Independent: Climate change is one of the defining issues of our time and the indisputable warming of the world over the past century is largely the result of human activities, according to the two most august science bodies in Britain and the United States.
The speed of global warming is now 10 times faster than at the end of the last ice age, which represents the most rapid period of sustained temperature change on a global scale in history - and there is no end in sight if carbon emissions continue to increase,...