Based on the following passage, what do users need to input into the Athena Impact Estimator? The Athena Impact Estimator allows users to bypass laborious calculations by getting questions answered online or by uploading a bill of materials to the program, which then uses EPA standards to determine the building’s potential to increase global warming, acidification, human health respiratory effects, ozone depletion, smog, and eutrophication.

a list of components required to complete a project

a catalog of the various specifications a project must meet

a list of EPA standards

an inventory of pollutants emitted by a project