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We have seen the basis of LCAs,
learned about the goal and scope,

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and looked at life cycle inventories.

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Now it's time to review the procedure for
conducting a lifecycle impact assessment.

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The lifecycle impact assessment
is the last major phase

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of conducting an LCA,
and is the focus of this module.

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In this module,
will identify the key elements in an LCIA,

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as well as the optional steps
that are involved in the process.

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Later, we will go on to outline
how to select which impacts to measure,

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along with the
most common impact categories,

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many of which you may
already be familiar with.

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In the final section of this module,

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we will examine impact assessment models.

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There are some published models,
such as Impact World + and IPCC,

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and we will understand
how using different models

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can affect our LCIA
in terms of yielding different results.