Contribution of plastic and microplastic to global climate change and their conjoining impacts on the environment - A review.
Contribution of plastic and microplastic to global climate change and their conjoining impacts on the environment - A review.
复制标题
塑料和微塑料对全球气候变化的贡献及其对环境的联合影响 - 综述。
DOI：
10.1016/j.scitotenv.2023.162627
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Subhankar Chatterjee
中科院分区：
文献类型：
--
作者：
Shivika Sharma;Vikash Sharma;Subhankar Chatterjee
塑料是化石燃料衍生的产品。在与塑料有关的产品的生命周期中涉及的不同过程中温室气体(GHG)的排放是对环境的重大威胁，因为它导致全球气温上升。到2050年，大量的塑料生产将占我们地球总碳预算的13%。全球温室气体的排放及其在环境中的持久性已经耗尽了地球上的残余碳资源，并产生了一个令人震惊的反馈循环。每年至少有800万吨废弃塑料进入我们的海洋，这引起了人们对塑料对海洋生物群毒性的担忧，因为它们最终进入食物链，最终影响人类健康。塑料废物管理不善及其在河岸、海岸线和景观上的存在导致大气中温室气体的排放比例较高。微塑料的持续存在也对脆弱和极端的生态系统构成重大威胁，该生态系统包含遗传变异较小的各种生命形式，使它们容易受到气候变化的影响。在这篇综述中，我们明确地讨论了塑料和塑料废物对全球气候变化的贡献，包括目前的塑料生产和未来趋势，全球使用的塑料和塑料材料的类型，塑料的生命周期和温室气体排放，以及微塑料如何成为海洋碳汇和海洋健康的主要威胁。还详细讨论了塑料污染和气候变化对环境和人类健康的共同影响。最后，我们还讨论了一些减少塑料对气候影响的策略。
Plastics are fossil fuel-derived products. The emissions of greenhouse gases (GHG) during different processes involved in the lifecycle of plastic-related products are a significant threat to the environment as it contributes to global temperature rise. By 2050, a high volume of plastic production will be responsible for up to 13 % of our planet's total carbon budget. The global emissions of GHG and their persistence in the environment have depleted Earth's residual carbon resources and have generated an alarming feedback loop. Each year at least 8 million tonnes of discarded plastics are entering our oceans, creating concerns regarding plastic toxicity on marine biota as they end up in the food chain and ultimately affect human health. The unsuccessful management of plastic waste and its presence on the riverbanks, coastlines, and landscapes leads to the emission of a higher percentage of GHG in the atmosphere. The persistence of microplastics is also a significant threat to the fragile and extreme ecosystem containing diverse life forms with low genetic variation, making them vulnerable to climatic change. In this review, we have categorically discussed the contribution of plastic and plastic waste to global climate change covering the current plastic production and future trends, the types of plastics and plastic materials used globally, plastic lifecycle and GHG emission, and how microplastics become a major threat to ocean carbon sequestration and marine health. The conjoining impact of plastic pollution and climate change on the environment and human health has also been discussed in detail. In the end, we have also discussed some strategies to reduce the climate impact of plastics.