Sentence 1: 21 Note that the Environmental Economics Advisory Committee (EEAC) of the SAB advised EPA to adjust WTP for increases in real income over time, but not to adjust WTP to account for cross-sectional income differences because of the sensitivity of making such distinctions, and because of insufficient evidence available at present (EPA-SAB-EEAC-00-013).

Sentence 2: Investigating the WTP was a time consuming task for the EEAC.

If the first sentence is true, then is the second sentence true?
it is not possible to tell