Scientists drill out oldest ever non-polar ice core
China and US-based researchers have captured the oldest ice core ever drilled outside the polar regions, dating back over 6 lakh years, before modern humans appeared. Found in Tibet's Guliya Ice Cap in 2015, the 1000-foot sample, nearly as long as Eiffel Tower's height, is being studied to assemble one of the longest-ever records of Earth's climate history.