Guardian: The Guardian is committed to making its own positive contribution to climate change (through editorial coverage, support for campaigns such as 10:10, and our own 10% reduction target), but a carbon footprint of a certain size will inevitably remain. Papers still need to be printed, print sites and office buildings operated, and staff to travel. In the past, the Guardian’s parent company, Guardian News & Media (GNM), has opted to address its emissions by carbon offsetting. When …