Within Teamwork, you can view all risks added across all of your projects in the site-level Everything area.
To view all Risks, click the More option in the main navigation menu on the left of your site and select Everything.

In the Everything area, select the Risks tab from the horizontal menu.

You will be able to see all risks added to each of the projects where you are a member.

To sort the risks, click the sort icon in the top right and select a sorting preference. You can then switch between ascending and descending order.

You can access advanced filter options by clicking the filter icon in the top right.

For more information, see: Adding a Risk