The weather is mainly warm today. The temperature is around 17 to 20 degree Celsius. However, the weather is very strange nowadays because it is very hot in afternoon but very cold in night. The difference of temperature between afternoon and night is big. I remember the temperature didn’t have much difference in a day in the past. It triggers me to think about the climate change problem. I don’t know if the big difference is caused by the climate change problem. As a HK citizen, I still adapt to the big difference of weather in a day.