Carnegie Mellon University, Pittsburgh, Pennsylvania, United States.
Environ Sci Technol. 2012 Mar 6;46(5):2529-37. doi: 10.1021/es203353q. Epub 2012 Feb 8.
Reducing greenhouse gas emissions (GHG) is an important social goal to mitigate climate change. A common mitigation paradigm is to consider strategy "wedges" that can be applied to different activities to achieve desired GHG reductions. In this policy analysis piece, we consider a wide range of possible strategies to reduce light-duty vehicle GHG emissions, including fuel and vehicle options, low carbon and renewable power, travel demand management and land use changes. We conclude that no one strategy will be sufficient to meet GHG emissions reduction goals to avoid climate change. However, many of these changes have positive combinatorial effects, so the best strategy is to pursue combinations of transportation GHG reduction strategies to meet reduction goals. Agencies need to broaden their agendas to incorporate such combination in their planning.
减少温室气体排放（GHG）是减轻气候变化的一个重要社会目标。一种常见的缓解模式是考虑可以应用于不同活动的策略“楔子”，以实现所需的 GHG 减排。在这篇政策分析文章中，我们考虑了广泛的可能策略来减少轻型车辆的 GHG 排放，包括燃料和车辆选择、低碳和可再生电力、出行需求管理和土地利用变化。我们的结论是，没有一种策略足以满足 GHG 减排目标以避免气候变化。然而，这些变化中有许多具有积极的组合效应，因此最好的策略是采用组合的交通 GHG 减排策略来实现减排目标。各机构需要扩大其议程，将这种组合纳入其规划中。
