[Excerpt] Environmental sustainability is a widely debated topic— one that the labor movement has tightly embraced and one that more and more HR practitioners are required to confront with regards to personnel policy, training, and CSR. Last week President Richard Trumka of the AFL-CIO, the largest union federation in the U.S., delivered the keynote address at the ILR School’s Union Days Conference on building a “green collar” movement. Mr. Trumka laid out his vision for an America that not only incorporates environmental sustainability into its workforce and lifestyle but also recognizes it as a necessary component to sustaining the economy.