How Effective are US Renewable Energy Subsidies in Cutting Greenhouse Gases?
基于美国国家研究委员会报告，评估联邦税收优惠对可再生能源的补贴在减少温室气体排放上的效果，发现影响很小甚至有时增加排放。
The federal tax code provides preferential treatment for the production and use of renewable energy. We report estimates of the subsidies' effects on greenhouse gases (GHG) emissions developed in a recent National Research Council (NRC) Report. Due to lack of estimates of the impact of tax provisions on GHG emissions, new modeling studies were commissioned. The studies found, at best, a small impact of subsidies in reducing GHG emissions; in some cases, emissions increased. The NRC report also identified the need to capture the complex interactions among subsidies, pre-existing regulations, and commodity markets.