Pioneering Preventive Preservation: The role of remote sensing in Cultural Heritage

In Europe, the preventive preservation of cultural heritage sites has emerged as a pressing priority in response to the escalating challenges posed by climate change. The current climate crisis, marked by unprecedented temperature fluctuations and a surge in severe climate-related impacts, poses serious risks to these cultural landmarks. Factors such as rising temperatures, extreme weather events, sea level rises, and shifting precipitation patterns accelerate degradation, heighten erosion and flooding risks, compromise the static integrity of monuments, and foster the growth of biodeterioration agents that can further burden these landmarks. In this context, it is recognized that remote sensing as a means of preventive preservation can be a critical tool for proactive heritage preservation, ensuring that these invaluable sites endure for future generations.
While substantial steps have been made in addressing the effects of climate change on cultural heritage, there remains a critical need for coordinated actions, investments, and collaborative efforts regarding applications such as remote sensing. Strengthening preventive preservation measures and ensuring the sustainability of cultural heritage requires integrating monitoring systems, updating management plans, and raising awareness among stakeholders as integral components of effective adaptation strategies.
This paper aims to present the current state of the art regarding remote sensing in cultural heritage through relevant case studies and projects, with a primary focus on the European-funded ARGUS project, which integrates remote sensor and satellite data with digital twins to develop non-destructive, scalable monitoring strategies for remote built heritage. Through a comparative analysis, the paper will also attempt to explore the existing limitations and challenges in employing remote sensing technologies for the proactive conservation of cultural heritage sites. 
Moreover, the paper emphasizes the critical importance of interdisciplinary collaboration among conservation experts, technologists, heritage stakeholders, and policymakers. Such partnerships are vital for addressing existing gaps and driving innovation in cultural heritage preservation. Significant progress has already been made at the European level, fostering initiatives that unite diverse projects into a collaborative ecosystem. These consortia facilitate the exchange of knowledge and best practices, identify opportunities for joint dissemination and communication efforts, and provide cohesive, actionable recommendations to policymakers within the European Union and beyond.
In conclusion, this paper examines the potential of integrating remote sensing technologies into the proactive preservation of cultural heritage in response to the escalating challenges of climate change. By tackling these issues, it aspires to outline a multi-faceted approach that combines advancements in remote sensing with robust interdisciplinary collaboration and targeted policy recommendations. Ultimately, the goal is to provide actionable insights that can enhance the resilience and sustainability of cultural heritage sites ensuring their protection for future generations in an increasingly vulnerable environmental context.