A new article in LiveScience questions if the ozone hole that exists over Antarctica is partially to blame for warming global temperatures. Researchers investigated how the ozone hole could be affecting jet stream winds over Antarctica, resulting in more clouds converging over the South Pole, and in turn reducing the amount of the sun's radiation reflected by the clouds. The effect: rising temperatures. This isn't to say that GHG emissions are off the hook: researchers estimate that the ozone hole is responsible for only a small amount of the overall warming trend being experienced around the world.