Although, on average, climate change may have a negative impact on yields, the projected yields by 2050 are still higher than current yields for most commodities. In the case of maize, for instance, under Scenario 4, climate may reduce the potential yields by almost 20%, however the maize yields are still expected to be about 50% higher than they were in 2005. The two scenarios that use inputs from the DSSAT crop model (Scenario 3 (IPSL/DSSAT) and 4 (Hadley/DSSAT)) result in higher world prices for maize, wheat and rice than do the two scenarios using the LPJmL crop model (Scenario 1 (IPSL/LPJmL) and 2 (Hadley/LPJmL)).