Mongabay: The costs of environmental degradation caused by rich countries are disproportionately falling on the world’s poorest countries, reports an analysis published in the journal Proceedings of the National Academy of Sciences. Tallying the environmental costs of climate change, stratospheric ozone depletion, agricultural intensification and expansion, deforestation, overfishing, and mangrove conversion from human activities over 1961-2000, University of California Berkeley researchers …