Obama administration science czar John Holdren says ‘global warming’ should now be referred to as ‘global climate disruption’. Is this just a semantic change or is it a strategic move designed to give cover to those in the climate change movement – no matter what the climactic evidence shows? What should we know about Holdren’s many years of involvement in this movement? Why is the terminology changing now? And how can anyone not schooled in climatology determine which side is right in this debate? We ask Dr. Tim Ball, former professor of climatology at the University of Winnepeg.