Summary:
- A new study published in *Environmental Research Letters* quantifies the historical climate impact of 122 of the world's largest fossil fuel and cement producers, linking their emissions to global temperature increases and sea-level rise.
- The research highlights that the majority of these "Carbon Majors" have contributed significantly to global warming since 1990, with the study's authors emphasizing the long-term, multi-century environmental consequences of the cumulative emissions generated by these entities.