and exposure summary table. Improvements and complimentary figures should be incorporated into this model (i.e. the introduction of quantified parameters).

Chemistry is a complex discipline. Providing ways to deal with this complexity and determining where decisions should be made is not an easy task. Therefore, the organization and classification of data should be associated with a quantification process (scoring methods, weighing factors, and heuristics) that will allow for prioritization of hazard and risk and for further multi-criteria based analysis. These metrics should be evaluated extensively in order to reach a balanced agreement, since no validated equation to accurately evaluate “sustainability” has been presented thus far. Communicating the results of a complex analysis into a single figure, or into a simple and readily understood form that does not oversimplify the analysis conclusions, is an additional challenge that needs to be addressed.


New scientific developments and more efficient tools to evaluate them are needed to enable the chemical industry to more effectively incorporate sustainability into general practices. Such an effort will require science, technology, and harmonized strategic approaches across disciplines, industries, and geographic boundaries:

Green Chemistry and Engineering. While chemists can currently make virtually any molecule using synthetic methods available to them, much more effort is needed in the development of green chemistry and engineering capabilities. These include the ability to:

  • efficiently form chemical bonds,

  • select solvents,

  • control thermal conditions,

  • purify and recover chemical products,

  • develop analytical methods,

  • formulate products,

  • model chemical reactions, and

  • perform all these tasks in an environmentally benign manner

These are essential for the development of industrial technologies that support sustainability.

Life Cycle Analysis. Life cycle assessment (LCA) is considered to be a powerful tool for comparing the environmental performance of products

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