The sky is pink. What is the reason?

The reason is that the wind brings clouds with different sizes and thicknesses, and the clouds with different thicknesses contain different water vapor. The sunset glow is refracted by water vapor at a special angle, thus making the whole sky "pink".

Extended data:

What are the hazards of air pollution?

First, the harm of air pollution to human body and health. Air pollutants mainly harm human body in three ways:

1, injured after contact with human surface;

2. Eating food containing air pollutants, water poisoning;

3. Suffering from various serious diseases after inhaling polluted air.

Second, air pollution endangers the survival and development of living things. Air pollution mainly harms the survival and development of living things in three ways:

1, poisoned or dried-up organisms;

2. Slow down the normal development of living things;

3. Reduce the resistance of organisms to pests and diseases.

Third, the corrosion of objects by air. Air pollutants have corrosive effects on instruments, equipment and buildings. For example, rust spots on metal buildings and severe weathering of ancient cultural relics.

Fourth, the impact of air pollution on the global atmospheric environment. The development of air pollution has transcended national boundaries so far, and its harm has spread all over the world. The impact on the global atmosphere is obviously manifested in three aspects:

1, ozone layer destruction;

2. Acid rain corrosion;

3. Global warming.