开始时间: 04/22/2022 持续时间: 5 weeks
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所在平台: CourseraArchive 课程类别: 物理与地球科学 大学或机构: Universiteit Leiden（莱顿大学） 授课老师： Ester van der Voet |
课程主页: https://www.coursera.org/course/metals
课程评论：没有评论
Metals are present everywhere around us and are major materials upon which our economies are built. Economic development is deeply coupled with the use of metals. During the 20th century the variety of metal applications in society grew rapidly. In addition to mass applications such as steel in buildings and aluminium in airplanes, more and more metals are in use for innovative technologies such as the use of the specialty metal indium in LCD screens.
In particular in emerging economies, but also in industrialized countries, the demand for metals is rapidly increasing. Mining activities expand, but easily accessible deposits are becoming scarce and recycling is inevitable. This “mining above ground” or “urban mining” is of increasing importance in generating raw materials. The continued increase in the use of metals over the 20th century has led to a substantial shift in metal stocks from below ground to above ground in applications in society. Such a shift raises social, economic, and environmental issues. To address these issues, information is needed on the amount of metal stocks in society and their lifetimes. This course, based on the reports of the Global Metals Flows Group of UNEP’s Resource Panel, will explore the conditions and the consequences of closed loop economies for metals.Week 1: The metals challenge
Week 2: Basic concepts of stock dynamics
Week 3: Recycling
Week 4: Scenarios for metals
Week 5: Case study
Population and welfare are growing and the global supply of metals is a major challenge. Only with reuse and recycling will metals be available in sufficient quantities. We will explore the conditions and consequences of closed loop economies for metals, based on the reports of UNEP's International Resource Panel.
