Why does it always rain? Can man control the climate?

It rains because water vapor meets cold air at high altitude and condenses into small water droplets; Artificial climate control mainly includes artificial rainfall.

Rain is a natural phenomenon. After the water on the earth is irradiated by sunlight, it becomes steam and is evaporated into the air. Water vapor condenses into small water droplets when it meets cold air at high altitude. They are small and light, and they are held in the air by the updraft in the air. These small drops of water gather in clouds in the air. If these small water droplets are to become raindrops and fall on the ground, their volume will increase by more than 6,543.8+0,000 times.

Artificial precipitation enhancement is a process of artificially supplementing some necessary conditions for precipitation formation according to the principle of precipitation formation in nature, and prompting cloud droplets to condense or collide quickly into raindrops and fall to the ground. According to the physical characteristics of different clouds, choose the right time to spread dry ice, silver iodide, salt powder and other catalysts into the clouds by planes and rockets to make the clouds precipitation or increase precipitation, so as to alleviate or alleviate the drought in farmland and increase the irrigation water or water supply capacity of the reservoir.

Extended data:

Requirements for artificial precipitation:

1. Different results can be obtained by the same catalysis of clouds under different conditions. In order to obtain the effect of artificial precipitation enhancement, it is necessary to carry out more in-depth detection and research on natural cloud conditions and precipitation process.

2. Sprinkle dry ice on the cloud by plane, and the small water droplets in the cloud will freeze into many small ice crystals, so that more water vapor will condense on it, become raindrops and land on the ground.

3. Ground operations based on anti-aircraft guns and rockets. Due to the successful development of extended-range flame-retardant artillery shells and flame-retardant rockets, the problem of transporting the catalyst to the right cloud part at the right time and according to the required dose has been basically solved.

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