Concerns about global warming are putting equal pressure on construction and architecture. In recent years we have seen, for example, the incorporation of gardens and vegetation into buildings, an idea that will be strengthened in the future. In addition, new, more environmentally friendly materials, such as wood, are being incorporated into construction, and research is being carried out into the production of different types of cement, so that its production and use will considerably reduce the emission of greenhouse gases. Examples of the latter are CO2Concrete, recently developed by UCLA (University of California, Los Angeles), or synthetic geopolymers based on aluminosilicates, which require a lower temperature for their production than conventional cement. On the other hand, the use of recycled materials is becoming more widespread, such as the use of containers, as we have seen in a multitude of initiatives for the construction of houses, hotels or bungalows on campsites. Another general principle that will guide architecture over the next decade will be that of the circular economy.