evidence: Carbon dioxide removal: NOAA State of the Science factsheet Human-caused emissions of carbon dioxide (CO2), a greenhouse gas (GHG), have been the largest driver of climate change over the past century. The increase of CO2 in the atmosphere has led to warming of surface temperatures over land and in the global oceans, ocean waters becoming more acidic and lower in oxygen, changes in marine food webs, and other associated climate impacts. Long-term protection of Earth’s climate and oceans requires substantial reductions in emissions and atmospheric concentrations of CO2 and other GHGs. [...] Full details on NOAA’s CDR research engagement are available in the Strategy for NOAA Carbon Dioxide Removal Research report, published in 2023. More information on CDR and NOAA’s role in CDR research is available at: oceanacidification.noaa.gov/carbon-dioxide-removal