Developed countries are pushing climate change that poorer countries suffer from, officials said Thursday, on World Environment Day.

Cambodia will suffer from global warming as coastal areas such as Koh Kong and Sihanoukville will feel an increase in heat, Prach Sun, secretary of state for the Ministry of Environment, told VOA Khmer Thursday.

Global warming can also lead to the spread of diseases, such as diarrhea, he said.

Cambodia is implementing the Kyoto Protocal and other international environmental agreements to reduce greenhouse gas emissions and to improve forest cover to help the Earth absorb those gases, he said.

UNDP Country Director Lay Khim said Thursday global warming affects all countries, from Egypt to Vietnam. Developed countries are responsible for the most gases, but developing countries feel the most effects, he said.