Okay. Thank you for the question.
The role of the centre for greening government is to coordinate the efforts to get to results in the greening government strategy. We developed the strategy. Our job now is to implement it with our colleague departments.
At Treasury Board Secretariat, being the management board, we have an essential role in government administrative policies. For example, Jessica here is with the Office of the Comptroller General. That office is the lead on the real property policies of the Government of Canada's fleet and procurement policies. Really, those are some good levers to move.... Given that our emissions are mostly from buildings and the fleet, those are the essential kinds of policies you want.
Part of our role is to align central policies with the greening government strategy, including those I mentioned. We own, of course, the policy on green procurement as well. We own those policies and that central management function.
Second, we're driving to implement and coordinate results. We provide direction and guidance to departments. We coordinate with the expert departments. In all of these different areas, there are departments with different expertise. Natural Resources Canada has expertise in buildings. Public Works has expertise in buildings and contracting. Environment Canada has expertise in adaptation, for example, and in other areas such as waste management, etc. The National Research Council has the construction institute that does the building codes, etc.
We bring together that expertise as a service to the implementing departments, which ultimately are the ones who will take action to reduce their emissions. They control their real property and fleet. Through their buying of real property and fleet, they can lower emissions. They have the direction from Treasury Board, the oversight function from Treasury Board and the support function from technical expertise.
PSPC owns the second-biggest portfolio. The biggest by far is defence; then second is PSPC. Environment Canada has expertise in sustainable development, generally. Adaptation leads the climate change work across Canada and with provinces and territories, etc.
I can let my colleagues add anything if they want to.