Impacts of Climate Change on Food Fibre and Forest ProductsIPCC 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. Increases in the frequency of droughts and floods are projected to affect local production negatively, especially in subsistence sectors at low latitudes. 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.
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