Help design an English conversation on the theme of weather changes, for two people, about three minutes.

Son: Mother, can you tell me what is climate change?

Mother: Climate change is any long-term significant change in the weather.

Son : My teacher tells us to save our earth. Why is that so important?

Mother: Climate change is problematic. For example, global warming will cause flooding and drought.

Son: What can I do to help our earth?

Mother: It is very easy. Always remember to reduce, reuse and recyle.

Son: Thank you, mother!