North America’s buildings release more than 2,200 megatons/year of CO2 into the atmosphere, more than a third of the continent’s total.
LEED construction, green retrofit and new energy-saving technologies could make a 35% reduction, compared to the business-as-usual trend. This reduction nearly equals the CO2 emissions of the entire US transportation sector in the year 2000, and would be a giant step towards fulfilling Kyoto obligations.
Green buildings can now cut energy usage by 30-70 percent from that in conventional properties, with economic and health benefits to owners, tenants and the whole population.
Green entrepreneurship is sadly lacking. In Canada and the US, only 2% of commercial building and less than 0.5% of home construction is up to LEED standard. Mexico has no similar data. The root of the problem, according to industry experts, is in governments' perverse subsidies and lack of incentives; without which, owners simply pass on energy costs to tenants and do nothing.
Green Building in North America: Opportunities and Challenges, marks a major shift of the CEC Secretariat, from reaction to proaction. The CEC project director Geoff Garver devoted two years to seeking expert advice from developers and architects, sustainability and energy consultants, real estate appraisers and brokers, local and national government representatives. But are state, provincial and national politicians willing to take action?
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Le Vistal, complexe résidentiel écologique sur l'Île des Soeurs à Montréal, face au fleuve St Laurent, comprend actuellement 160 unités, qui avec un 2e tour deviendront 300. Sa certification LEED vise l'aménagement écologique du site, les matériaux de construction, la qualité de design intérieur, la gestion d'eau, d'air et d'énergie. Ses promoteurs sont parmi les rares -- seulement 0.5% en Amérique du Nord -- qui cherchent à réduire les impacts environnementaux.
La faute, selon les experts en immeuble cités par le CCE, reste avec les octrois pervers et la manque d'incitation positive de la part des gouvernements. Le propriétaire d'une édifice peut simplement hausser le bail pour ne pas écoper des frais de l'energie. Mais les hommes politiques, nationaux ou en région, oseront-ils changer le régime fiscal ?
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