Question 9:
Which of the following is not true about an increasing greenhouse effect? a) the consensus of scientists is that the problem warrants drastic action b) nighttime temperatures may increase, but daytime temperatures will not c) the coldest, driest regions of the planet will warm first
Which of the following is not true about an increasing greenhouse effect?
a) the consensus of scientists is that the problem warrants drastic action b) nighttime temperatures may increase, but daytime temperatures will not c) the coldest, driest regions of the planet will warm first
That statement is true. A warmer atmosphere will allow more humidity and water vapor (clouds) to saturate the skies. Water vapor, especially white clouds, are powerful solar reflectors-- they may even cool daytime temperatures slightly. Any warming, if it does occur, will likely occur as a decrease in the amount of nighttime temperature drop.
Similarly, it is the driest and coldest regions of the earth that would notice the biggest change-- places like Siberia and Canada. Are warmer winter nights in the Arctic Circle really a problem? Desperately Seeking Mission: Why the State Department's Gone Green, Peter VanDoren, 1997.