A article by science daily  explains how a 2 degree change in the climate in Antarctica would result in at least one free ice chain summer but if there is a a limited warning of 2 degree they would limit the possibility of a ice free summer by 30% 2100. The scientist explain how they never knew how even a .5 degree change can effect so much in the environment. The ice shelves are melting no getting around it but for the possibility that there could be ice free summer is not good since so many organism live on them. This change could change the world forever.

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