Mohandas Gandhi once said: ‘Be the change you wish to see in the world’. With that simple piece of wisdom, one man brought down the largest empire the world has ever seen. Global warming, on many levels, can appear an insurmountable problem, too big for any one person to even attempt to tackle. But like all issues that appear too vast to comprehend, more often than not, it is the thought that it is insurmountable that prevents change from taking place.