Climatic events caused a total of 1485 deaths and over 562,000 people affected in Morocco from 1990 to 2014. Climate finance is a key factor in the battle against the effects of global climate change. Morocco for its part is engaged in the process of fight against climate change and has established a sustainable development policy based on renewable energies and has contributed financially to the implementation of several climate projects. In our study, we are proposing a solution to increase the global contribution to climate finance based on global GDP.