Science
Extreme CO2 greenhouse effect heated up the young Earth – EurekAlert
Although sun radiation was relatively low, the temperature on the young Earth was warm. An international team of geoscientists has found important clues that high…
Very high atmospheric CO2 levels can explain the high temperatures on the still young Earth three to four billion years ago. At the time, our Sun shone with only 70 to 80 per cent of its present intensity. Nevertheless, the climate on the young Earth was apparently quite warm because there was hardly any glacial ice. This phenomenon is known as the ‘paradox of the young weak Sun.’ Without an effective greenhouse gas, the young Earth would have frozen into a lump of ice. Whether CO2, methane, or…
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