E-dechet.com le web au service de l'environnement. Planetary Boundaries and The Failure of Environmen. Planetary Boundaries and The Failure of Environmentalism Planetary boundaries are the natural limits on humanity's use of the planet.
Strikingly, until recently, no one had made a serious effort to quantify these limits in measurable ways. That's why a new report from the Stockholm Resilience Center, attempting to give hard numbers for most of these boundaries, is so crucial. The Resilience Center focused in on nine boundaries: climate change, stratospheric ozone, land use change, freshwater use, biological diversity, ocean acidification, nitrogen and phosphorus inputs to the biosphere and oceans, aerosol loading and chemical pollution.
Planetary Boundaries and the New Generation Gap. Planetary Boundaries and the New Generation Gap A sort of generation gap on global issues is emerging around the pace of change. The older generation, especially the older generation of well-heeled white men, today respond to our calls for rapid change by urging "realism" -- meaning an expectation of delayed action and minimal commitment. We saw this most recently in the U.S. debate about the Waxman-Markey climate bill, which both takes effect too slowly and demands too little, in comparison to what we know we need to do based on climate science.
Objects and wastes. Biodiversity.