div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=a-looming-arctic-ozone-holehtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: A looming Arctic ozone hole loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentsusreader030viewer20220203125750688f1a28ab0f07b0ba7ehtml5thumbnails1jpg width=140 height=200 divp© 1992 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=a-looming-arctic-ozone-holehtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: A looming Arctic ozone hole loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentsusreader030viewer20220203125750688f1a28ab0f07b0ba7ehtml5thumbnails2jpg width=140 height=200 divp© 1992 Nature Publishing Grouppdiv