Global warming is a term used to describe the gradual increase in the average temperature of the Earth's atmosphere and oceans. It is caused by the emission of greenhouse gases, such as carbon dioxide, from burning fossil fuels and other human activities. The term 'detente' is used to describe a period of improved relations between two or more countries, often after a period of tension or hostility. Detente can be used to reduce the risk of global warming by encouraging cooperation between countries to reduce emissions and promote sustainable development.