Research project topic About Green Building
The benefits of green buildings
The world over, evidence is growing that green buildings bring multiple benefits.
They provide some of the most effective means to achieving a range of global goals, such as addressing climate change, creating sustainable and thriving communities, and driving economic growth.
Highlighting these benefits, and facilitating a growing evidence base for proving them, is at the heart of what we do as an organisation.
The benefits of green buildings can be grouped within three categories: environmental, economic and social. Here, we provide a range of facts and statistics from various third-party sources that present these benefits.
One of the most important types of benefit green buildings offer is to our climate and the natural environment. Green buildings can not only reduce or eliminate negative impacts on the environment, by using less water, energy or natural resources, but they can – in many cases – have a positive impact on the environment (at the building or city scales) by generating their own energy or increasing biodiversity.
At a global level:
The building sector has the largest potential for significantly reducing greenhouse gas emissions compared to other major emitting sectors – UNEP, 2009.
This emissions savings potential is said to be as much as 84 gigatonnes of CO2 (GtCO2) by 2050, through direct measures in buildings such as energy efficiency, fuel switching and the use of renewable energy – UNEP, 2016.
The building sector has the potential to make energy savings of 50% or more in 2050, in support of limiting global temperature rises to 2°C (above pre-industrial levels) – UNEP, 2016.
At a building level:
Green buildings achieving the Green Star certification in Australia have been shown to produce 62% fewer greenhouse gas emissions than average Australian buildings, and 51% less potable water than if they had been built to meet minimum industry requirements.
Green buildings certified by the Indian Green Building Council (IGBC) results in energy savings of 40 – 50% and water savings of 20 – 30% compared to conventional buildings in India.
Green buildings achieving the Green Star certification in South Africa have been shown to save on average between 30 – 40% energy and carbon emissions every year, and between 20 – 30% potable water every year, when compared to the industry norm.
Green buildings achieving the LEED certification in the US and other countries have been shown to consume 25 per cent less energy and 11 per cent less water, than non-green buildings.
Green buildings offer a number of economic or financial benefits, which are relevant to a range of different people or groups of people. These include cost savings on utility bills for tenants or households (through energy and water efficiency); lower construction costs and higher property value for building developers; increased occupancy rates or operating costs for building owners; and job creation. Since the publication of WorldGBC’s groundbreaking 2013 report, The Business Case for Green Building, we have sought to strengthen the link between green buildings and the economic benefits they can offer.
At a global level:
Global energy efficiency measures could save an estimated €280 to €410 billion in savings on energy spending (and the equivalent to almost double the annual electricity consumption of the United States) – European Commission, 2015.
At a country level:
Canada’s green building industry generated $23.45 billion in GDP and represented nearly 300,000 full-time jobs in 2014 – Canada Green Building Council / The Delphi Group, 2016.
Green building is projected to account for more than 3.3 million U.S. jobs by 2018 – US Green Building Council / Booz Allen Hamilton, 2015.
At a building level:
Building owners report that green buildings – whether new or renovated – command a 7 per cent increase in asset value over traditional buildings – Dodge Data & Analytics, 2016.
Green building benefits go beyond economics and the environment, and have been shown to bring positive social impacts too. Many of these benefits are around the health and wellbeing of people who work in green offices or live in green homes.
Workers in green, well-ventilated offices record a 101 per cent increase in cognitive scores (brain function) – Harvard T.H. Chan School of Public Health / Syracuse University Center of Excellence / SUNY Upstate Medical School, 2015.
Employees in offices with windows slept an average of 46 minutes more per night – American Academy of Sleep Medicine, 2013.
Research suggests that better indoor air quality (low concentrations of CO2 and pollutants, and high ventilation rates) can lead to improvements in performance of up to 8 per cent–Park and Yoon, 2011.
Our Better Places for People project focuses on creating buildings which are not only good for the environment, but also support healthier, happier and more productive lives.
WorldGBC and the Green Building Council of South Africa established a joint project to develop a framework to enable complex socio-economic issues to be integrated into any green building rating system in the world.
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