 I think one of the most important things or lessons we've learned around the world is that with regard to sustainable procurement, we need to focus more on what we buy instead. So, for example, we don't want to fall into the trap of assuming that the right thing to do is replace a fossil fuel burning truck with an electronic or an EV, an electric vehicle version of that truck. What you want to do is ask yourself, can we avoid using that mode of transportation?