- Despite of the energy released from the Earth’s surface is faster than the solar energy reaching the Earth, some of the energy that has been emitted as infrared radiation is absorbed and reflected back in all directions by greenhouse gas molecules. Therefore, the Earth’s surface become warmer and cannot cool down rapidly.
- The statement made by the cartoon cannot be justified. This is because global warming is not short-term effect, it takes long time to see the effects. One particular weather (in this cartoon is snowing) or one period of time cannot be used to determine whether global warming has stopped or not.
- Microwave has long wavelength, and hence low energy. In order for a radar to be optimally functional, high energy radiation which means short wavelength is needed. Furthermore, long wavelength radiation will diffract more and decrease the accuracy of the radar. Thus, the first radar design developed during World War II was no successful.
- We think air quality has the most serious problem for us in the short run because it has the most prominent effect. Also, it is much easier to pollute the air. In the long run, we think global warming has the most serious problem. This is due to the long-term effect of global warming itself.
