Vietnam is a tropical country. The climate is often hot and humid. In North Vietnam there  are  four  seasons:  spring,  summer,  autumn  and  winter.  It  is  hot in summer and it is very cold in winter. In South Vietnam there are only two seasons: the rainy season and the dry season. It rains a lot from May to November. In the dry season it is very hot. Sometimes there are storms in the North and floods in the South.

 Vietnam is one of the countries with large air pollution levels. Why ? It is because of the subjective and poor sense of many people plus large factories. People who are conscious not to litter indiscriminately and maintain hygiene will contribute to clean air. Factories with many modern equipment but few air cleaners will also emit a lot of toxic gas. So I want everyone to be conscious of Vietnam being clean and beautiful.