Considering the long-term is not new, yet we seem to be overwhelmed by the long-term nature of many of our environmental policy problems. Following a definition of long-term policy problems, this editorial introduces the contributions to this special issue of Global Environmental Politics and outlines three major challenges for future research, including the time inconsistency problem, the effect of democratic and decentralized governance on problem-solving, as well as institutional designs to prevent or recover from unwanted long-term policy outcomes.

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