Found this regarding that:
<a href="http:&#x2F;&#x2F;wattsupwiththat.com&#x2F;2009&#x2F;06&#x2F;13&#x2F;results-lab-experiment-regarding-co2-snow-in-antarctica-at-113%C2%B0f-80-5%C2%B0c-not-possible&#x2F;" rel="nofollow">http:&#x2F;&#x2F;wattsupwiththat.com&#x2F;2009&#x2F;06&#x2F;13&#x2F;results-lab-experiment...</a>