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The document explains the science of cumulative impacts, contrasting traditional single-chemical risk assessments with a holistic approach that considers multiple pollution pathways, pollutant accumulation, and non-chemical stressors. It advocates for the precautionary principle and the regulation of chemicals as classes to better protect overburdened communities, while emphasizing that lived experience and qualitative data are essential scientific components for effective policy.

The report establishes a framework for assessing temporary carbon storage, asserting that because CO2 emissions have effectively permanent impacts, storage lasting only decades or a century cannot offset emissions without risking higher long-term temperatures. It argues that economic equivalence claims are irrelevant to the physical targets of the Paris Agreement and suggests a minimum storage requirement of 100 years based on the precautionary principle and current global emissions trajectories.