Mitigating the impact of anthropogenic climate change requires both rapid decarbonization and carbon dioxide removal (CDR). CDR is a necessary component of climate initiatives because it is needed to remove legacy emissions and compensate for emissions from hard-to-abate sectors in a net zero world. To achieve this goal, CDR technologies, including Enhanced Weathering (EW), Ocean Alkalinity Enhancement (OAE), Direct Air Capture (DAC), carbon mineralization and others must reach the gigatonne scale. This session focuses on learnings from early deployments across CDR pathways. In particular, we welcome submissions focused on the scientific complexities of monitoring, reporting and verification (MRV) at scale with implications for cross-pathway consistency, for example data transparency, uncertainty quantification, community engagement, ecosystem safety and development of novel monitoring methods. We aim to convene scientists from academia, industry and government agencies to accelerate scientific and technical collaboration, foster rigorous standards and catalyze the growth of CDR at climate-relevant scale.