One of the interesting initiatives we have in play is around green electricity. In those parts of the country where green electricity is not already available, we've been making efforts to either directly purchase these green alternatives or to purchase renewable energy certificates. These are two methods by which we are optimistic we will have a net-zero electricity carbon footprint by the end of 2022.
We are also working in the national capital area on leveraging centralized heating and cooling, which has considerable greening benefits as well. Those are a few examples in addition to the work I mentioned on vehicles.