Addressing this challenge adequately would have much more negative effects: the cost of climate change if no action is taken will be 20% of GDP, while the adoption of mitigation and adaptation measures would cost only 1% of GDP. However, even if the emissions reduction objectives established by the different initiatives and national and international mechanisms are met, the effects of past emissions are already having and will continue to have their consequences at local level in the coming years. years. As the Stern Report states (Stern, 2006)