IPCC projections for food fibre and forest products
Crop productivity is projected to increase slightly at mid to high latitudes for local mean temperature increases of up to 1-3°C depending on the crop, and then decrease beyond that in some regions.
At lower latitudes, especially seasonally dry and tropical regions, crop productivity is projected to decrease for even small local temperature increases (1-2°C), which would increase risk of hunger.
Globally, the potential for food production is projected to increase with increases in local average temperature over a range of 1-3°C, but above this agricultural productivity is projected to decrease.
Adaptations such as altered cultivars and planting times allow low and mid to high latitude cereal yields to be maintained at or above baseline yields for modest warming.
Globally, commercial timber productivity rises modestly with climate change in the short to medium term, with large regional variability around the global trend.
Regional changes in the distribution and production of particular fish species are expected due to continued warming, with adverse effects projected for aquaculture and fisheries.