Introduction to section 3

[EN] Studies to assess the impact of climate change on water resources at global and regional scales (Intergovernmental Panel on Climate Change [IPCC], 2023; Tawfik et al., 2024, in this issue) agree that the consequences of climate change will differ markedly between regions and that climate change will have a very negative impact on the availability of water resources in some regions. Climate change scenarios point to an aggravation of existing problems, making it necessary and urgent to address them decisively. Climate change adaptation is a main concern in countries and regions where water management has traditionally faced water scarcity (Garrote, 2017).