We must promote a change in comprehensive water management in the Barcelona metropolitan region to deal with the lack of local water resources and episodes of drought. Specifically, we must promote the increased use of reclaimed water and alternative sources (on an industrial, agricultural and residential scale) to achieve greater consumption efficiency.

The energy transition is a key process that must take place gradually and democratically to reduce GHG emissions and thereby mitigate the effects of climate change. In this sense, we must move towards replacing energy of fossil origin with local renewable energy, reducing consumption and boosting efficiency and self-production.

The transport of people and goods is one of the main sources of GHG emissions and other pollutants in cities. Therefore, it is essential to promote a change in the current mobility model, which is heavily dependent on fossil fuels, towards eco-mobility, accompanied by a more rational use of large infrastructure.

It is essential to change from the current economic system, based on natural resource consumption and increasing social inequalities, towards a fairer and more sustainable model. We must promote a development model that respects the land and promotes quality employment by promoting the circular economy, industrial symbiosis and consumption based on sustainable and local products.

Given the climate emergency, we must move towards an urban model that prioritises residents’ well-being and the protection of biodiversity. Cities must adopt a resilient model that occupies land while taking the climatic variable into account, with balanced and connected neighbourhoods that promote short distances and eco-mobility, and with quality green public spaces.

The coastal system is complex and sensitive to the effects of climate change. The increase in extreme weather events and the rise in the sea level annually generate economic losses and negative social and environmental effects. We must propose adaptive action with solutions based on nature, so that it is more resilient, while protecting its biodiversity.

The Barcelona metropolitan region must promote the improvement and growth of its green infrastructure equitably throughout the territory. This means increasing its surface area, but also enabling it to be multifunctional, diverse and connected, providing essential ecosystem services to facilitate the fight against climate change and guarantee the protection of biodiversity.