The latest study of ice drilled from Antarctica reveals that carbon dioxide levels are substantially higher now than at any time in the last 800,000 years.

BBC:

Carbon dioxide levels are substantially higher now than at any time in the last 800,000 years, the latest study of ice drilled out of Antarctica confirms.

The in-depth analysis of air bubbles trapped in a 3.2km-long core of frozen snow shows current greenhouse gas concentrations are unprecedented.

The East Antarctic core is the longest, deepest ice column yet extracted.

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