Take the following as truth: But gas prices begin to rise which allows coal to make a modest comeback with respect to scenario A. This is especially true as cleaner and more efficient coal technologies begin to penetrate the market as assumed in scenarios B through D. In order to offset the tendency for coal-generated emissions to increase, permit prices need to adjust upward.
Then the following statement: "Gas prices go up and affect coal prices." is true, false, or inconclusive?