The problem of climate change has attracted international attention mainly because of its cross-border effects and the impossibility of solving the problem by a few nations. We know that the global climate is currently changing. Climate change is a long-term shift in the weather statistics (including its averages). For example, it could show up as a change in climate normal’s (expected average values for temperature and precipitation) for a given place and time of year, from one decade to the next. The International Panel on Climate Change (IPCC) has set a target to reduce global greenhouse gas emissions so that the global mean average temperature does not increase by more than 2°C above pre-industrial levels. Vulnerable areas such as parts of Africa, Asia, and the Pacific and Caribbean small island states are already facing the impacts of climate change, and so adaptation and mitigation measures are important.