After being ranked 52nd in 2013, Middlesex has climbed to 24thposition out of 151 UK institutions thanks to a range of initiatives rolled out in 2014, including the installation of solar panels and LED lighting in the College building and the provision of electric vehicle charging points.
The rankings are based on 13 criteria including environmental policy, audit and human resources, as well as performance in areas such as carbon reduction, waste and water recycling, student engagement, curriculum for sustainable development, energy efficiency, sustainable food and workers' rights.
Commenting on the latest league table, Andrew Dickie, Director of Estates and Facilities at Middlesex, said: "Four years ago we were ranked at number 111. We have come a long way since then to not only do our bit in reducing energy consumption, but we have helped improve the environment around the university, encouraging recycling and discouraging waste.
"Sustainability is a top priority for the University, and to build on our success, we have developed a 'Go Green' week encouraging all staff and students to increase their participation in our green initiatives."
Alongside 'Go Green' week, Middlesex is also aiming for Eco-Campus Gold Award accreditation in 2015.