GCSE Chemistry - Life Cycle Assessments (LCAs) #73

The video tutorial explains life cycle assessments, which evaluate the environmental impact of a product throughout its life cycle. It covers the four main stages: extracting raw materials, manufacturing, usage, and disposal. The tutorial compares plastic and paper bags, highlighting their environmental impacts at each stage. It also discusses the limitations of life cycle assessments, such as the complexity of quantifying all steps and potential manipulation for corporate benefit.

What are the four main stages of a life cycle assessment?

How does the extraction of resources from nature impact the local environment?

What are the three main problems associated with the manufacturing and packaging stage?

In what ways can the use of a product affect its overall environmental impact?

What are the disposal options for products, and how do they affect the environment?

Compare the environmental impacts of plastic bags and paper bags in terms of their life cycle assessments.

What are some limitations of life cycle assessments that can affect their accuracy?