![]() Thus, the Venus studies are believed to be important to the understanding of possible adverse effects on the Earth’s agriculture that could result from the long-term use of fossil fuels, which add carbon dioxide to the atmosphere.ġ. ![]() Because of its higher percentage of carbon dioxide, Venus’ atmosphere traps much more heat radiation than does the Earth’s. Venus has a relatively thin atmosphere like the Earth’s, but Venus’ atmosphere consists of more than ninety percent carbon dioxide, compared to less than four percent in that of the Earth. Such a greenhouse effect is created when energy in the form of sunlight easily passes through a planet’s atmosphere, warms its surface, and is converted to heat radiation that is then held in by the atmosphere from top to bottom. ![]() Data from the Pioneer spacecraft of NASA apparently prove the theory that the high surface temperature of Venus is due to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide. ![]()
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