ENV DES 4C Chapter Notes - Chapter article: Global Warming Potential, Zero-Energy Building, Znc
21 Mar 2019
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A word about carbon: plants or softwoods sequester (store) carbon by absorbing co2 and releasing 02, co2e = carbon equivalent emissions, from carbon and other gases, calculated according to ea. One"s global warming potential (gwp: embodied carbon = carbon footprint. Global carbon limit: > 2 degree threshold climate effects spin out of control, become irreversible. Buildings are the problem and the solution: cities = 75% world"s energy, so eliminate carbon emissions from built environment sig reduce overall emissions. Zero by 2050: global temps already inc. by . 85 above pre-ind levels, ~ to threshold. Zero net carbon gold standard: since 1970"s (beg. Emissions now hurt more than emissions later: 80-100 yr lifespan of building operation emissions > embodied, but bc work to eliminate building sector emissions importance of embodied carbon changes. Embodied carbon in the future: new construction = 2 x efficiency of typical construction, now - 2050 80-90% energy profile of building will = embodied energy.
