Remote sensing shows overall increasing trends in both the annual maximum Normalized Difference Vegetation Index  and annual mean NDVI in global grassland ecosystems between 1982 and 2011 . Multiple lines of evidence indicate that changes in grassland productivity are positively correlated with increases in mean annual precipitation . Increasing temperatures positively impact grassland production and biomass, especially in temperature-limited regions . However, it is expected that grasslands in hot areas will decrease production as temperatures increase  . Nevertheless, grassland responses
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report