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Abstract

The world is already facing the consequences of climate change and biodiversity collapse, yet current trends suggest a far more difficult future in which the existence of human civilization is at stake. This commentary addresses the PBL community's lukewarm engagement with sustainability questions with a friendly warning. Unless PBL practitioners and scholars take the full measure of the emergency and change in proportion to the threat, PBL risks becoming irrelevant. Several avenues for changing PBL in a more sustainable direction are suggested, but this commentary is an invitation for all PBL scholars and educators to come together and bring forward ideas to effect change.

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