Interesting excerpt Prof. Kenneth. Thanks

Dear Adel;

Greenhouse gases cause increase of air temperature, and increasing of air temperature will increase water vapor capacity, so it will decrease the clouds.

This video could show you how it happen.

https://www.smithsonianmag.com/videos/category/3play_1/climate-change-101-with-bill-nye-the-science/

Hope it helps.

Best

The water level in the sea rose from 0.3-0.7 feet during the last century.

The temperature has risen between 0.4 - 0.8 degrees Celsius over the past century, according to the report of the International Committee on Climate Change.

Taking ice in the poles and above the Australian mountain peaks in the melting significantly.

Winter seasons have increased over the last three decades, warmer than before and shortened periods, Spring comes early than its dates.

The ocean currents have changed their course, affecting the thermal balance that existed, and scientists have indicated that hurricanes appear in places where they have not been seen before.

Some scientists associate the pollution caused by the change in the number of flankton animals in the seas as a result of the acidity of the seas as a result of their absorption of carbon dioxide and explain that human pollution is similar to the effect of the butterfly, which is only the torch that gives the first batch of this process and the bilactone does the rest.

Dear Dr. Adel

The effect of clouds depends upon their type and the time of day. The more interesting and important type is the low thick clouds. At night the reflection effect is zero so the greenhouse effect and reflection of thermal radiation dominate and the low thick clouds have a warming effect. One can easily see that the reflection of thermal radiation is far more important than the greenhouse effect. The greenhouse effect could at most return 50 percent of the outgoing radiation back to the Earth. Reflection from the underside of clouds probably returns 90 percent of the radiation. The two effects are not in competition. Clouds could return 90 percent from reflection and half of the unreflected 10 percent. Thus it is easy to see why there is such a difference in temperature between a clear night and a cloudy night in the winter. Since the greenhouse effect from the atmospheric gases would be the same on a clear and a cloudy night one could say that the effect from greenhouse gases is negligible compared to the effect of low thick clouds.

The effect of high thin cirrus clouds at night would be very small compared with that of the low thick stratocumulus clouds.

In the daytime the reflection effect can dominate the greenhouse effect and thus clouds have a net cooling effect. The cooling effect of a cloud shadow is familar to everyone.