GENEVA (Reuters) - The hole in the ozone layer above Antarctica has grown to near record size this year, suggesting 20 years of pollution controls have so far had little effect, the United Nations said on Friday. In a bulletin on the seasonal depletion of ozone gas, which filters harmful ultraviolet radiation that can cause skin cancer and cataracts, the U.N.'s World Meteorological Organization (WMO) said the hole would peak within a couple of weeks. "It will probably not break any records, but it shows that ozone depletion is going on and that the so-called ozone recovery has yet to...