About Energy, Environment and Sustainability Group 

Energy, Environment and Sustainability Group (EESG) supports a vision of a long-term, sustainable future. 

Who we are

EESG is the natural intellectual home for engineers who want to learn about sustainability engineering.

EESG evolved from part of the Environmental and Safety Engineering Group, and incorporates the former Energy Committee and Pollution Prevention Technical Activity Committee.

Energy, environment and sustainability explained

Energy is the capacity of a physical system to do work. In the context of EESG, it covers the science, technology and engineering relating to the conversion, supply, storage, distribution, conservation, and use of energy in all its various forms.

Environment is the totality of surrounding conditions. In the context of EESG, it covers the science, technology and engineering relating to the management, protection, conservation and enhancement of the environment, for the greater benefit of society and the earth's natural ecosystems. EESG recognises that human society exists wholly within the natural environment, and that it is wholly subject to the laws of ecology.

Sustainable Development and Sustainability have been defined in various ways. We accept and work with the following:

Brundtland Report, 1987

"Sustainable Development is development that meets the needs of the present without compromising the ability of future generations to meet their needs."

The Engineer of the 21st Century Inquiry, 2000

“Sustainability can best be defined as the capacity for continuance into the long-term future. Sustainability depends upon maintaining, and where possible increasing our stocks of certain assets, so that we manage to live off the income without depleting the capital. Sustainable development is the process by which, over time, we succeed in managing all the different capital flows in our economies on a genuinely sustainable basis.” 

Industries or disciplines represented

Energy, Environment and Sustainability Group covers climate change, resource depletion including peak oil, ecosystem reclamation and the challenges of increasing population; and policymakers, industry, academia and students turn to us as a source of expertise, vision, direction and solutions.

What we do

EESG aims to enable mechanical engineers to deliver the engineering solutions that are required for the transition from current unsustainable practices to interim options and long-term sustainable solutions. It supports employers, policy-makers, investors, educators and other key stakeholders.

Our activities include:

  • Research
  • Activities across all our divisions and groups and the regions to promote and support sustainability, including seminars, exhibitions and talks
  • Engagement with the government and other policymakers to influence decisions
  • Expert meetings, debates, and courses
  • Promotion of sustainability with other stakeholders such as the Engineering Council, and other professional institutions
  • Representing the Institution on the board of the Society for the Environment
  • Understanding the potential of emerging technologies and encouraging dissemination
  • Engagement with universities.


EESG's mission is to help engineers to use engineering to work towards long term sustainability, a mission inseparable from the IMechE mission 'to improve the world through engineering'.

Get in touch

If you have a question or would like to get involved, contact our Governance and Engagement team.

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