Future changes in nutrient concentrations have been estimated using ESMs, with future increases in stratification generally leading to decreased nutrient levels in surface waters . CMIP6 models project a decline in the nitrate concentration of the upper 100 m in 2080-2099 relative to 1995-2014 of -0.46 + 0.45 , -0.60 + 0.58, -0.80 + 0.77 and -1.00 + 0.78 mmol m-3 under SSP1-2.6, SSP2-4.5 and SSP5-8.5, respectively . These declines in nitrate concentration are greater than simulated by the CMIP5 models in their RCP analogues, a likely consequence of enhanced surface warming and stratification in CMIP6 models . It is concluded
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report