
Million-year-old bubbles may solve ice age mystery
PNRA_IPEV Air and particles formed hundreds of thousands of years ago are trapped in the ice Possibly the world’s oldest ice, dating back 1.2 million years, has been excavated from within Antarctica. Working in temperatures of -35C, a team of scientists extracted a 2.8km long cyclone or core of ice – taller than eight Eiffel…