The Action “Basic Research Financing (Horizontal support for all Sciences)” (ID 16618 - Subproject 1) is included in the projects of component 4.5 “Promote Research and Innovation” within the framework of the National Recovery and Resilience Plan “Greece 2.0” funded by the European Union - Next Generation EU and aims to contribute to the achievement of the general goals set by the National Recovery and Resilience Plan “Greece 2.0” (hereinafter “Greece 2.0”). Component 4.5 “Promote Research and Innovation”, which includes the present Action, aims to increase public and private investments for research and development (R&D), strengthen connections between science and businesses and develop innovative infrastructures for R&D. This will be achieved through a series of projects, as well as reforms, aiming to motivate innovative businesses to invest in the R&D sector. Sub-action 1, in which RE.Nature Cities Project is implemented, aims to finance projects with Principal Investigators (PI) who are newly appointed or are currently undergoing an appointment procedure for a non-permanent position (on a term basis) offered to Faculty Members, Researchers and Staff Research Scientists (ELE) in an Academic or Research Institution in Greece. Through this Sub-action, the beneficiaries shall have the opportunity to fund and implement their research ideas in all sciences, without any thematic or geographical restrictions, including in their team, for example, PhD candidates and/or postdoctoral researchers.