Earth&Sky:地球對溫室氣體沒有免疫力

There is no area on Earth that immune from the effects of carbon dioxide. He is talking about research using an instrument called the Atmospheric Infrared Sounder AIRS that works aboard NASA’s Aqua satellite. AIRS tracks carbon dioxide, a greenhouse gas known to be causing global warming. We can look at the carbon dioxide emitted from Asia moving across the Pacific to North America, where we add more carbon dioxide to it, and then it moves across Atlantic to Europe. We see it goes round and around. Chahine said AIRS also tracks water vapor, which he called the planet’s most potent greenhouse gas. He said warming global temperatures mean more evaporation from the oceans. This water vapor gets stored in Earth’s upper atmosphere, heating up the Earth even more. If the carbon dioxide is causing a global warming say, of, one degree, the resulting water vapor in the atmosphere will multiply it so that the net effect of the carbon dioxide and the water vapor is like two and a half degrees, not just one.