Blue and Green: Despite pledging to take climate action five G7 countries have increased their coal use in the last five years, according to a report. It is estimated that coal plants in the G7 will cost the world $450 billion (294bn) a year by the end of the century and reduce crops by millions of tonnes. The paper Let Them Eat Coal has been published by Oxfam. The report has been published as G7 leaders meet in Germany to discuss a range of issues, including climate change, ahead of an important UN conference...