Since the 1960s, environmental stresses in the industrialized world have sh
ifted from predominantly local to global scale, from separate to increasing
ly tightly coupled stresses, and from readily observable acute stresses to
subtle, chronic, and long-term ones. Central challenges in successful gover
nance of the environment over the next few decades will involve developing
more effective ways to integrate high quality, objective scientific and tec
hnical assessment with key decision needs; learning more effective processe
s for managing under uncertainty and responding adaptively to advances in k
nowledge; and effectively coordinating inevitably shared authority and capa
city across multiple levels of government and between diverse public and pr
ivate actors.