Key Takeaways Petrobras joined the Carbon Countdown initiative to measure carbon in Brazil's soils and forests.$18.6M project aims to build Brazil's first standardized database across all states and biomes.PBR-backed fieldwork spans 6,500 sites and 250,000 soil analyses, with data published openly.Petrobras (PBR) , the national oil and gas company of Brazil and Shell plc (SHEL) have joined forces in a groundbreaking effort to advance climate science by funding a nationwide initiative focused on measuring th ...