; (2) a detailed description of— (A) the projects supported by those grants; and (B) the outcomes of those projects; (3) a description of the improvements in technology, environmental benefits, resources conserved, efficiencies, and other benefits of the projects funded under this Act; (4) recommendations for improvements to promote and support innovative stormwater control infrastructure for the centers, grants, and activities under this Act; and (5) a description of existing challenges concerning the use of innovative stormwater control infrastructure. 7. Authorization of appropriations There are authorized to be appropriated to carry out this Act such sums as are necessary for each of fiscal years 2020 through 2025.