|One of the interesting facts about Global Warming is that the #1 greenhouse gas is actually water, not carbon dioxide. However, because the CO₂ humans are injecting into the air triggers evaporation of H₂O, the effect is that of an amplifier, causing temperatures to rise much faster than they otherwise would have.
The Times of India reports:
The increased level of water vapour in the atmosphere is one of the contributing factors to the increase in global temperature, according to a team of researchers from the US.
This new study, conducted by the University of Miami Rosensteil School of Maritine and Atmospheric Sciences and colleagues, shows that the rise in the levels of water vapour in the atmosphere directly affects, not only the temperature on earth, but also the human activities of it. It also brings to light how the activities by the human beings have resulted in an increase in the levels of water vapour in the atmosphere.
"The study is the first to confirm that human activities have increased water vapour in the upper troposphere," said Brian Soden, co-author of the study, and Professor of Atmospheric Sciences at the University of Miami Rosensteil School.
Their findings showed that the greenhouse gases trap the heat within the atmosphere, and evaporates more water from the surface. This extra water vapour, they say, is stronger than most of the normal greenhouse gases, increasing the greenhouse effect manifold.
This study was published in the Proceedings of the National Academy of Sciences (PNAS) journal, by the name of 'Upper Tropospheric Moistening in response to Anthropogenic Warming'.