Scientists advise limiting global warming to 1.5°C with substantial actions by 2030. Our viewpoint argues that climate response strategies in Canada have underemphasized and underestimated the potential contribution deep energy retrofits can make to greenhouse gas (GHG) emissions reductions, leading to inadequate responses in the building sector, and that Canada can (and should) be ambitious with building retrofits over the next decade. GHG savings from building retrofits can be realized more quickly than GHG reductions from other sectors, and either deliver net cost savings or are cost‐effective when compared to other mitigation measures. Retrofits can also provide social and economic benefits, such as improved health and comfort, and lower energy costs. This paper reviews energy use and building retrofits in Canada and argues the following should be implemented: (1) focus innovation on deep energy retrofit processes, not singular retrofit actions; (2) maximize both social and environmental benefits; (3) improve data gathering and availability for analysis and delivery; (4) innovate for a process of decisions and to avoid “dropouts” during the retrofit process; and (5) focus innovation on business models that maximize benefits.

中文翻译：

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雄心勃勃的建筑物深层能源改造，以加快加拿大1.5°C的能源转换

科学家建议在2030年前采取重大行动将全球变暖限制在1.5°C。我们的观点认为，加拿大的气候响应策略过分强调并低估了深层能源改建对减少温室气体（GHG）排放的潜在贡献，从而导致对气候变化的应对不力。建筑业，并且加拿大可以（并且应该）在未来十年内对建筑改造进行雄心勃勃的计划。与其他部门减少的温室气体相比，建筑翻新带来的温室气体节省可以更快地实现，并且与其他缓解措施相比，可以节省净成本或具有成本效益。改造还可以提供社会和经济效益，例如改善健康和舒适度，并降低能源成本。本文回顾了加拿大的能源使用和建筑改造，并提出以下建议：（1）将创新重点放在深层能源改造过程，而不是单一的改造行动上；（2）最大化社会和环境效益；（3）改善数据收集以及分析和交付的可用性；（4）为决策过程进行创新，并避免在改造过程中出现“辍学”；（5）将创新重点放在最大化收益的业务模型上。