Human induced climate change is claimed to be the greatest challenge of the 21st century. But man-made carbon emissions continue to rise - the 400ppm carbon milestone causes barely a ripple. I am intrigued as to why, in society at large, there is little grass roots support, no loud and clear call for action to address this issue.
The people charged with driving down emissions are often specialists with expertise in engineering, systems and measurements. But when it involves getting other people to change, the way forward can be less than obvious. Something more than data is needed.