Which solar term wears a coat?

In recent years, the weather is changeable, hot and cold. Especially at the turn of spring and summer, climate change is more frequent. Sometimes I wear short sleeves in hot weather, and sometimes I wear cotton-padded clothes in cold weather. Climate change shows that our living environment is changing, environmental deterioration leads to climate change, and there are more and more bad and abnormal weather! We should care for the environment and protect nature! This is also to care for future generations! Caring for the environment starts with me!