core planetary boundaries analytic framework showing the link between planetary processes and human well-being 1. large changes in the climate or in biosphere would likely push the Earth System out of the Holocene state provide the planetary level overarching systems within which the other boundary processes operate Operate at the level of the whole Earth System The aggregated global surplus boundary with respect to all thresholds is 43 megatonnes of nitrogen per year, which is 64 per cent lower than the current (2010) nitrogen surplus (119 megatonnes of. effect climate, change how much solar radiation is reflected or absorbed in the atmosphere climate change & Biosphere Integrity -highly integrated, connected to all of the other Planetary Boundaries affects cloud formation, and global -scale and regional patterns of atmospheric circulation (monsoons and tropical regions) human pressure is now the dominant driving force determine the functioning and distribution of global freshwater systems Atmospheric Aerosol Loading -play an critically important rile in the hydroponically cycle loss of summer polar ice is almost irreversible. evidence suggest we have already transgressed this planetary boundary. atmospheric aerosol loading biosphere integrity. Freshwater consumption and the global hydro logical cycle -freshwater cycle is strongly affected by climate change and its boundary is closely linked to the climate boundary nitrogen and phosphorous flows to the biosphere and oceans. fertilizer is the main concern Land System Change -forests, grasslands, wetlands, and other vegetation types have primarily been converted to agricultural land Nitrogen and phosphorus flows to the biosphere and oceans -the biochemical cycles of nitrogen and phosphorous have been radically changed by humans as a result of many industrial and agricultural processes
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |