Why doesn't it rain in Shandong?

I guess there are several possibilities:

1: Taishan and Yishan blocked the rain in Shandong.

It's too bad that the chemical plant discharges the sewage underground. If you don't cherish it, you are not qualified.

3. Global climate change has led to changes in the original rainfall conditions in Shandong, and the exact location needs to be studied.

4. The population is large, the industry is large, the plastic film in the greenhouse reflects light, and the environment is seriously damaged.