Pros & Cons
3 Pros:
• It is helpful to include all globally involved material, of whatever type, in one sum
• Allows cross-country comparisons
• Allows comparisons across products and production technologies
3 Cons:
• Sheer weight is a highly insufficient descriptor
• Washing water and chemicals weigh the same
• Cyclic and non-cyclic usage is unrespected
![global material extraction to domestic](/sites/default/files/styles/max_1300x1300/public/2022-02/image114.png?itok=FuTABQka)
![global material extraction to domestic](/sites/default/files/styles/large/public/2022-02/image115.png?itok=iNqcucwc)