Through Manulife Investment Management, we have a global real estate portfolio of more than 61.9 million square feet, which includes properties we own as well as those we invest in or manage on behalf of clients. Recognizing that nearly 40 per cent of global GHG emissions are attributed to the design, construction and operation of buildings, we’ve committed to minimizing the GHG emissions from our buildings, including the buildings occupied by our employees. 
With most of our emissions derived from the electricity we use to power buildings and the fuels used to heat spaces and water, we focus on improving energy efficiency, which is currently the most cost-effective way to reduce our GHG footprint. We also purchase renewable energy and pilot clean technologies to further reduce emissions.
Our Sustainable Building Standards and five-year environmental targets are critical for helping us reduce our impact.
Our Sustainable Building Standards are aligned with our fmmitments:
The Sustainable Building Standards program is one of our most important sustainability leadership strategies. Ongoing property operations represent the most significant part of our environmental impact (energy, water, waste and associated greenhouse gas emissions) and are the focus of our interactions with employees, tenants, community members and other stakeholders.
The standards help embed and improve sustainability across our global real estate portfolio. They align with industry best practices and are flexible enough to ensure that meaningful steps can be taken at all types of properties, from industrial warehouses to downtown offices.
Green building certification is the focus of one Sustainable Building Standard and perhaps the most widely recognized symbol of our sustainability commitment. At the end of 2018, 49.5 million square feet of our real estate portfolio was certified under LEED®, BOMA BEST® or Energy Star™, representing 80 per cent of our entire portfolio.
In 2017, we set five-year energy, water and waste targets for our global real estate portfolio to encourage sustainability as a business issue, identify cost-saving opportunities and help reduce its environmental footprint. Using 2017 performance as the baseline, the 2022 targets are as follows:
We report on progress annually in od our Global Real Estate Sustainability Benchmark (GRESB) submission.
At the end of 2018, 49.5 million square feet of our real estate portfolio was certified under LEED®, BOMA BEST® or Energy Star™, representing 80 per cent of our entire portfolio.
 Source: National Institute of Building Science, 2016. (Brian Theordor, E.I.T). https://www.wbdg.org/resources/greenhouse-gas-emissions-federal-buildings