claim: Arctic sea ice loss is three times greater than Antarctic sea ice gain, and the amount of solar energy absorbed by the Earth is increasing as a result.
evidence: As reported by Pat Michaels on his World Climate Report website, MacCracken said during the hearing that "the last decade is the warmest since 1400", implying that the warming had been caused by the greenhouse effect, and replied to Walker's question about whether thermometers had then existed by explaining the use of biological materials as temperature proxies.