Life cycle assessments (LCAs) are time consuming and can be expensive. Sometimes a company simply needs to have a basic estimate of the environmental impacts of the country which they are conducting the operations. If a company plans to move a current established production line or set up a new production line, which countries should be considered for a full LCA? It would be useful to have a coefficient for each country which could scale an established LCA result to estimate each new country's emissions. The following study develops country coefficients which could be used to scale LCA results. After careful study of many environmental parameters, two were selected to develop the country coefficient: total primary energy supply and electricity grid mix. This coefficient was designed for fiber-reinforced composites; and as the sources of natural fiber could be very different; we also included forestry and agriculture in our study. At the end of the study, we performed LCA-based greenhouse gas emission estimates for several countries and compared the results to the estimates using the country coefficients. We were able to reach an impressive result of up to 95% accuracy in comparison to the full LCA In just simple steps.

生命周期评估（LCA）既耗时又昂贵。有时，一家公司仅需要对其运营所在国家/地区的环境影响进行基本估算。如果公司计划搬迁现有的生产线或建立新的生产线，那么应考虑在哪些国家使用完整的LCA？每个国家都有一个系数，可以用来衡量已建立的LCA结果以估算每个新国家的排放量。以下研究得出了可用于衡量LCA结果的国家系数。在仔细研究了许多环境参数之后，选择了两个参数来发展国家系数：一次能源供应总量和电网结构。该系数是为纤维增强复合材料设计的。由于天然纤维的来源可能非常不同；我们的研究还包括林业和农业。在研究结束时，我们对几个国家进行了基于LCA的温室气体排放估算，并将结果与​​使用国家系数的估算进行了比较。只需简单的步骤，与完整的LCA相比，我们能够达到高达95％的准确度。