The review of 55 scientific articles shows that deviations from moderate climate and precipitation patterns systematically increase the risk of violence and conflict, both on an interpersonal level (assaults, murder, rape) and an intergroup level (political co... More »
A new study models the long-run effects of global warming on agricultural productivity and its impact on migration flows in low- and middle-income countries. More »
Though the authors found consistently positive (i.e. increased) yields for cover cropping, organic fertilization, mulching, and water harvesting, even more compelling is the meta-analysis that was conducted to investigate the potential for climate change mitig... More »
Philadelphia’s Director of Sustainability, Katherine Gajewski, reflects on the rising tide of local government collaboration to address climate change in the face of gridlock at the federal and state levels. More »
A study of past megadroughts and predicted climate change indicate that the Southwest and Central Plains could face decades-long droughts in the coming century. More »
An interview with Dr. Kennette Benedict of the Atomic Bulletin of Scientists about the recent Doomsday Clock announcement, nuclear weapons, climate change, and why now is the time for real leadership and action. More »
A new study examines the role of uncertainty in modeling the social cost of carbon use. Its conclusions indicate that the optimal carbon dioxide tax and abatement level may be double the estimates of a widely used model. More »
Researchers look at the worldwide production efficiency of agriculture’s four most important indicator crops and use the information to interpret global sustainability trends. More »
An analysis of water markets around the world indicates significant challenges of implementation. In spite of the difficulties, water markets may be a promising means of improving water sustainability. More »
Supportive renewable energy policy has a significant effect on international trade for solar energy technology components, where early investment is the key to large growth for exporting countries. More »