A chart depicting the transition from short to medium term supply risks of a series of elements important to clean energy. Lithium is expected to become substantially higher risk, which Samarium is expected to remain unchanged. Cerium, for example, is expected to become lower risk

FIGURE 2-8Between the near and medium terms, several elements change criticality categories

SOURCE: Adapted from DOE (2010, Fig. ES-2, p. 8).

From: 2, Assessments of Criticality

Cover of The Role of the Chemical Sciences in Finding Alternatives to Critical Resources
The Role of the Chemical Sciences in Finding Alternatives to Critical Resources: A Workshop Summary.
National Research Council (US) Chemical Sciences Roundtable.
Washington (DC): National Academies Press (US); 2012.
Copyright © 2012, National Academy of Sciences.

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