As the world races toward achieving net-zero carbon dioxide emissions by 2050, Brazil finds itself at a pivotal crossroads in its environmental strategy. The country, which stands as the largest CO2 emitter in South America and the seventh largest globally, is beginning to explore Carbon Capture and Storage (CCS) as a viable solution to mitigate its emissions. A recent study published in Advances in Geosciences sheds light on the potential for onshore saline aquifers in Brazil’s Paraná and Espírito Santo basins to serve as effective storage sites for CO2.
The research, led by F. B. D. Amarante from the Instituto de Geociências at the Universidade Federal do Rio Grande do Sul, evaluates geological data to identify suitable saline aquifers for CO2 sequestration. The study emphasizes that these aquifers must be located below 800 meters, possess a thickness greater than 20 meters, and be covered by a robust caprock of at least 10 meters thick. “Our findings indicate that there are significant areas within the Rio Bonito Formation and the Mucuri Member that can effectively sequester CO2,” Amarante stated.
The Rio Bonito Formation, located in the central-southern Paraná Basin, offers promising conditions for CO2 storage across two zones covering approximately 65,800 square kilometers. Meanwhile, the Mucuri Member in the Espírito Santo Basin presents another promising area, spanning around 630 square kilometers. Together, these zones could potentially store over 6.1 gigatons of CO2, a substantial capacity that could bolster Brazil’s efforts to reduce emissions in the near to medium term.
This research not only highlights Brazil’s geological potential but also underscores the commercial implications for the energy sector. As industries face increasing pressure to adopt sustainable practices and reduce carbon footprints, the ability to store CO2 safely and effectively could position Brazil as a leader in the burgeoning CCS market. The study’s findings could attract investments in clean technology and create new business opportunities in environmental services, ultimately contributing to a greener economy.
The implications of this research extend beyond mere numbers; they represent a shift in how Brazil can harness its natural resources to combat climate change. “With the right infrastructure and investment, we can turn these geological formations into valuable assets for carbon management,” Amarante remarked, emphasizing the importance of strategic planning and collaboration among stakeholders.
As Brazil embarks on this journey toward CCS implementation, the findings from this study serve as a crucial stepping stone. By leveraging its geological advantages, Brazil can not only work towards its climate goals but also pave the way for innovation and growth in the energy sector. The potential for saline aquifers to play a significant role in this transition is promising, marking a new chapter in Brazil’s environmental narrative.
For more information on the research, you can visit Instituto de Geociências, Universidade Federal do Rio Grande do Sul.
