Ecological economics is a transdisciplinary field that seeks to integrate the study of humans and the rest of nature as the basis for the creation of a sustainable and desirable future. It seeks to dissolve the barriers between the traditional disciplines and achieve a true "consilience" of all the sciences and humanities. This consilient, transdisciplinary science represents a rebalancing of analysis and synthesis; a recognition of the central role of envisioning in science; a pragmatic philosophy built on complex systems theory, thermodynamics, and modeling; a multiscale approach; and a consistent integration of cultural and biological coevolution. It will allow us to build a world that is both sustainable and desirable and that recognizes our fundamental partnership with the rest of nature. (Contains 1 note, 1 table, and 3 figures.)