New research from the University of Washington finds that greenhouse gases already released by the world's largest fossil fuel and cement producers will keep warming the planet for decades, even if all emissions stopped tomorrow. The study, published in PLOS Climate, looked at the top 178 carbon majors and used the FaIR climate model to simulate temperatures through 2500. It estimates that past emissions have already pushed the world to roughly 1.5 degrees Celsius above preindustrial levels, and that much of that warming is now locked in. Researchers say the finding matters for legal and policy decisions. If courts or governments try to hold major emitters accountable for climate damage, the responsibility does not end once emissions stop. The study also reinforces a basic point: every additional ton of CO2 adds more warming, so stopping new fossil fuel production is the only path to a stable climate. For anyone tracking carbon markets or climate finance, this is background worth knowing.
