Every few days, it seems, another factor is discovered to further accelerate Climate Destabilization. Today we learned that increasing CO2 makes ice crack faster.

Glaciers Cracking in the Presence of Carbon Dioxide

... CO2 molecules may be having a more direct impact on the ice that covers our planet. Researchers from the Massachusetts Institute for Technology have shown that the material strength and fracture toughness of ice are decreased significantly under increasing concentrations of CO2 molecules, making ice caps and glaciers more vulnerable to cracking and splitting into pieces,...

Ice caps and glaciers cover seven per cent of Earth -- more than Europe and North America combined -- and are responsible for reflecting 80-90 per cent of the Sun's light rays that enter our atmosphere and maintain Earth's temperature. They are also a natural carbon sink, capturing a large amount of CO2.

"If ice caps and glaciers were to continue to crack and break into pieces, their surface area that is exposed to air would be significantly increased, which could lead to accelerated melting and much reduced coverage area on the Earth.

... CO2molecules first adhere to the crack boundary of ice by forming a bond with the hydrogen atoms and then migrate through the ice in a flipping motion along the crack boundary towards the crack tip.

The CO2 molecules accumulate at the crack tip and constantly attack the water molecules by trying to bond to them. This leaves broken bonds behind and increases the brittleness of the ice on a macroscopic scale. [emphasis mine]

I hadn't known that the 7% of Earth covered by ice acted as a CO2 sink, so as ice melts the CO2 it contains will be re-released too.

Tags: CO2, Climate Destabilization, carbon dioxide, glaciers, ice, ice caps, positive feedback

Views: 5

MJ

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