 Three scenarios "without" climate change (SRES A1, B1, B2) projected 100-130 million undernourished by the year 2080, while another scenario without climate change (SRES A2) projected 770 million undernourished.Based on an expert assessment of all of the evidence, these projections were thought to have about a 5-in-10 chance of being correct.The same set of greenhouse gas and socio-economic scenarios were also used in projections that included the effects of climate change.