Human-made methane levels higher than previously believed (Image 2)

Vasilii Petrenko loads an ice core into the melting chamber for extraction of trapped ancient air in order to study the chemical composition of the ancient atmosphere. [See related image Here.]

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In 2011, a team of ...This is an NSF Multimedia Gallery item.

Source: NSF Multimedia Gallery - November 15, 2017 Category: Science Source Type: video