Shrinking ozone hole a beacon of hope for climate change reversal

OzoneThe risk of things like skin cancer, extinction of sensitive amphibians and degradation of outdoor buildings is now lower, thanks to the fact that the hole in our ozone layer – which protects Earth from the Sun’s ultraviolet radiation – has shrunk. Satellite measurements indicate that the ozone hole is about 1 million miles smaller than when measured a year ago, a positive trend that NASA says can be explained by an unstable and warmer Antarctic vortex. Senior Sustainability Scientist Kevin Gurney is heartened by this news, which suggests that other negative trends can also be reversed. With regard to influencing the direction of climate change, Gurney says, "It suggests more than a possibility — it suggests that we can achieve the solution to a large global environmental problem."