A recovery of the depleted ozone layer would accelerate global climate warming, especially polar ice caps, according to an international research team. Ozone is known to be a greenhouse gas. Ozone has been greatly depleted in the Antarctic, so ozone recovery could lead to a warming effect in that region. The effects could be serious, as Antarctica houses the planet's main glacial reserves. In the latest issue of Science, researchers describe the effect a three-fold increase of ozone in the Antarctic could have on atmospheric currents over the next half-century. Seok-Woo Son, recently hired by McGill University, is the study's leading author.