Scientists in Arctic race to preserve 'ice memory'

Scientists camped in the Arctic are set to start drilling to save samples of ancient ice for analysis before the frozen layers melt away due to climate change, mission organizers said on Monday.

CO2 levels in the Northern Hemisphere shape carbon uptake

Carbon dioxide (CO2), one of the major greenhouse gases, doesn't distribute evenly around the globe. Spatial variation of CO2 regulates the climate system and carbon cycle through a physiological effect and radiative forcing.

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