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Antarctica’s Secrets: What Ancient Ice Cores Reveal Ice cores—cylindrical samples drilled from deep within Antarctica’s ice sheets—are windows into a world long gone Trapped within them are air bubbles, tiny pockets of ancient atmosphere, carrying whispers of climates that flourished and vanished
What do ice cores reveal about the past? - National Snow and Ice Data . . . Combined with other paleoclimate records such as tree rings and fossils, ice cores enable scientists to reconstruct past worlds By preserving evidence of ancient temperatures and greenhouse gases, ice cores show scientists how much our planet has changed
Antarctic Ice Cores Reveal 800,000-Year Climate History in . . . Deep beneath the icy expanse of Antarctica, scientists have uncovered a remarkable archive of Earth’s climate history Through the extraction of ancient ice cores, researchers can now peer back in time nearly 800,000 years, revealing patterns and shifts in the planet’s atmosphere and temperature
Core questions: An introduction to ice cores - Science@NASA The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago But where do ice cores come from, and what do they tell us about climate change?
When scientists reconstruct ancient climates from ice cores, how do . . . Despite the challenges, ice cores are incredibly rich sources of information about our planet’s past And they’ve proven their reliability, McGee says, as researchers compare them to one another and to other records of Earth’s ancient climates
What Ancient Ice Cores Reveal About Earth’s True Climate Past Ancient ice cores help scientists estimate how much polar ice melted in the past and how sea levels responded By comparing stable isotopes in the ice, researchers can reconstruct past temperatures and link them to global sea level changes