The " missing " heat , 26 % , is due to the greenhouse effect , natural variations in climate and / or an underestimation of net heat emissions , the researchers say .
研究者说,“丢失”的热有26%是由于绿岛效应、气候自然变迁和/或对净热排放的低估。
Unfortunately it seems there 's no such thing as small change : the much-repeated 21 days to form a habit is a considerable underestimation unless your only goal in life is drinking glasses of water .