Climate Central: It turns out the hole in the now famous ozone layer above the South Pole isnt the only hole in the atmosphere. Researchers recently discovered, to their considerable surprise, that the atmosphere above part of the western tropical Pacific Ocean is nearly devoid of one of the key chemicals that scrubs pollutants from the air. This newfound hole occurs naturally over thousands of kilometers in one of the most remote places on the planet (which accounts for its having gone unnoticed until now) and...