The UNESCO-MOST BRIDGES Coalition is proud to announce the formal recognition of The Casa da Pedra (Stone House) Initiative as an outstanding example of humanities-anchored, transdisciplinary sustainability science.
BRIDGES Recognition Programme: The Mission in Practice
The Recognition Programme was established to advance the BRIDGES mission: encouraging transdisciplinary research that is inclusive of the humanities and co-produced with communities.
The BRIDGES recognised initiatives exemplify our mission to foster transdisciplinary, humanities-inclusive solutions, offering innovative approaches to building socio-ecological resilience in real-world contexts where transformation is most critical.
Each project demonstrates that we cannot solve sustainability issues without understanding the social and cultural contexts that drive them.
UNESCO-MOST BRIDGES recognition follows a rigorous evaluative process assessing alignment with UNESCO-MOST BRIDGES’ principles and UNESCO’s sustainability science approach, with particular emphasis on transdisciplinary, socially responsible, ethical and transformative practice.
Influencing Global Policy
BRIDGES recognition provides a mechanism for these initiatives to inform international policy. By highlighting these projects as exemplary models, the actionable knowledge they generate will:
Located in Inhumas, within the municipality of Santana do Cariri, Brazil, the initiative sits at the heart of the Araripe UNESCO Global Geopark, contributing to the preservation of cultural heritage and the promotion of education in the region.
Casa da Pedra serves as a pioneering community-based project that bridges the gap between academic scientific knowledge, such as geology and paleontology, and the urgent needs of a low-income, arid-climate community, to foster sustainable development, education, and the preservation of geological heritage.
Promoting sustainability in a low density territory through geoheritage: "Education through Stone"
For over 60 years, UFRJ has conducted research in southern Ceará, a region of global significance due to its geological heritage linked to the Gondwana breakup. Casa da Pedra serves as the physical and conceptual anchor for this work, integrating teaching, research, and community engagement through the pillars of space, time, and culture.
The initiative’s guiding principle, “education through stone,” is embodied in its very architecture. The 1,000 m² facility was built entirely by local workers using Cariri Stone, a limestone traditionally used in the region. Crucially, the stone was sourced exclusively from quarry waste, reviving ancestral building techniques and demonstrating the potential of sustainable, low-cost construction aligned with environmental preservation.
Key aspects of the initiative include:
As a multipurpose hub, the centre includes:
Strategic Vision and Future Impact
Its four-stage strategy for the future includes:
Through the transformation of limestone waste into sustainable infrastructure and the promotion of "citizen science," Casa da Pedra continues to serve as a replicable model for social transformation and regional innovation.
The work of The Casa da Pedra (Stone House) Initiative strengthens the global UNESCO-MOST BRIDGES network and contributes meaningfully to transformative, humanities-anchored community-led initiatives.
A Transdisciplinary Approach to Sustainability
Casa da Pedra exemplifies a transdisciplinary model by merging the natural sciences with the humanities and traditional knowledge. It hosts projects connecting: Geosciences & Biology; Sustainable Architecture & Physics; Anthropology & Education; Tourism & Regional Development.
By offering free educational activities for public school students and community residents, the initiative democratises access to science. It transforms complex concepts into hands-on experiences, fostering a sense of belonging and local identity.
Collaborative Network
To ensure long-term sustainability, Casa da Pedra operates through a diverse network, led by the Federal University of Rio de Janeiro (UFRJ), including UFRJ; the Santana do Cariri City Hall; the Araripe Geopark administration; local and traditional knowledge holders; and international research networks.
BRIDGES recognises the importance of championing transdisciplinary initiatives that address complex, multi-faceted societal challenges in innovative ways to stimulate transformative change for the benefit of societies, people and planet.
A criteria of the BRIDGES Recognition Programme is the initiative addresses specific global, regional or local challenges encompassed by the United Nations Sustainable Development Goals (SDGs).
Case da Pedra serves as an exemplary case of how bridging diverse knowledge bases can provide innovative solutions to the SDG’s. The Initiative tackles a number of the SDGs by integrating scientific research, geological and cultural heritage, and community development; specifically addressing:
SDG 1: No Poverty
Case da Pedra focuses on improving the economic living conditions and self-esteem of the low-income, rural Inhumas community.
The initiative functions as a hub for training and geotourism, creating direct market access for local products and labour. By leveraging the region's unique geological heritage and traditional knowledge, it establishes new economic opportunities that reduce financial vulnerability for the rural population.
SDG 4: Quality Education
Casa da Pedra bridges the gap between theoretical knowledge and practical application by utilising the local geological landscape as a primary teaching tool. The project promotes the use of geological heritage as an educational and economic resource, fostering empathy between the community and the natural environment.
Through the "Education through Stone" programme, free educational activities for public school students are provided, (democratising access to science); along with hands-on geoscience training; and academic immersion for university students. Rooted in place and cultural heritage, the initiative fosters a sense of belonging and local identity.
SDG 6: Clean Water & Sanitation
Casa da Pedra Supports community engagement in sustainable water usage within an arid-climate territory.
The initiative promotes the implementation of decentralised water management solutions and traditional cistern systems to enhance water security for rural families. By educating the community on the efficient collection and reuse of rainwater, it mitigates the impact of prolonged droughts and ensures more reliable access to clean water in the semi-arid Araripe region.
SDG 8: Decent Work & Economic Growth
Casa da Pedra promotes regional development through professional training, the creation of jobs, the sale of "geoproducts," and the promotion of sustainable geotourism.
The initiative stimulates the local economy by formalising the production chain of stone-based crafts and providing specialised training for residents to serve as geotourism guides. By establishing a direct commercial platform for "geoproducts," it ensures that the value generated from the region's natural heritage remains within the community, fostering stable employment and diversified income streams.
SDG 11: Sustainable Cities and Communities
Casa da Pedra functions as a community hub that preserves geological and cultural heritage, strengthens local identity, and uses traditional limestone techniques to foster a sense of belonging.
The centre revitalises the rural Inhumas settlement by integrating ancestral limestone craftsmanship into modern public infrastructure, ensuring the physical and cultural preservation of the Araripe territory.
This restoration of local identity creates a resilient communal space that safeguards regional history while promoting sustainable, community-led urban development.
SDG 12: Responsible Consumption and Production
The Stone House itself is a model of sustainability, constructed entirely from Cariri Stone waste (recycled limestone) sourced from local quarries.
The construction process demonstrates a circular economy approach by diverting tons of limestone scrap from local mining sites that would otherwise be discarded as environmental waste. By transforming these surplus materials into durable architectural infrastructure, the project sets a precedent for low-impact building practices and proves the viability of upcycling mineral resources for regional development.
SDG 13: Climate Action
The initiative hosts the region's first meteorological station for environmental monitoring and addresses challenges related to arid-climate realities; a hub for academic research and community development.
The station serves as a critical data collection hub that enables the community to monitor local precipitation patterns and temperature fluctuations in real-time. By providing accurate climate data, the facility empowers farmers and local leaders to develop more effective adaptation strategies and mitigation plans for the recurring droughts characteristic of the semi-arid Araripe Basin, bridging the gap between scientific monitoring and community resilience.
SDG 17: Partnerships for the Goals
The initiative operates via a collaborative governance model.
Partners include the lead organisation, Federal University of Rio de Janeiro (UFRJ); Santana do Cariri City Hall; the Araripe Geopark; traditional and local knowledge holders; and international research networks.
