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

and looked at life cycle inventories.

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

The lifecycle impact assessment
is the last major phase

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

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

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

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

along with the
most common impact categories,

many of which you may
already be familiar with.

In the final section of this module,

we will examine impact assessment models.

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

and we will understand
how using different models

can affect our LCIA
in terms of yielding different results.