Meet the team

Driving change and empowering people to create a #SustainableLSE

The Sustainability Team works hard to improve the environmental performance of LSE, working closely with stakeholders to implement LSE's Sustainability Strategic Plan and champion sustainable practices at the School and beyond.

Clement House, LSE, 99 Aldwych, London, WC2A 2AE
Tammy April 2024

Head of Sustainability, Tammy Armstrong (she/her)

Leads the Sustainability Team, overseeing the implementation of LSE's Sustainability Strategic Plan.

More about our Head of Sustainability

In her role, Tammy works in close collaboration with stakeholders across the School, and is responsible for raising the profile of sustainability at LSE, overseeing the delivery of the Sustainability Strategic Plan (SSP), and working to ensure that the School sets itself suitably ambitious targets.




Residences Sustainability Officer, Dan Reeves (he/him)

Embeds sustainability across LSE’s managed halls of residence.  

• #SustainableLSE halls campaign in partnership with SOS-UK

• ReLove in halls

• Sustainable Projects Fund 

More about our Residences Sustainability Officer

I work with the eight LSE-managed halls to embed sustainability within them. One of the largest engagement programmes is the University of London’s “Reduce the Juice” (nothing to do with drinking!) which is a friendly inter-hall competition to save ‘Energy’, ‘Waste’ and ‘Water’. 

I am also heavily involved with working with the British Heart Foundation (BHF) on the end of year ‘Relove’ collections, where we divert items that may have been thrown out to the BHF. Last year this totalled 9.6 tonnes or items worth around £16,800 for BHF! 

I get to work on a really diverse range of projects within sustainability, and one of my favourite aspects has to be biodiversity in the form of the LSE Bees!



Emeline new

Carbon Reduction Manager, Emeline Sztrakos (she/her)

Responsible for carbon, energy and water management.

• Carbon management

• Energy management

• Water management

More about our Carbon Reduction Manager

I oversee the carbon management for LSE from delivering energy efficiency projects to procuring energy contracts and ensuring compliance with relevant regulations.

I am also in charge of water management and water contracts for the School.



Ralitsa Team Photo3

Sustainability Administrator and Analyst, Ralitsa Andreeva

Ralitsa supports the Sustainability Team with administration and data analysis, in particular for utilities (electricity, gas, water, waste).  

More about our Sustainability Administrator and Analyst

In her role, Ralitsa supports the team by checking and processing utilities invoices (electricity, gas, water, waste) for all LSE’s buildings.

She also supports the team with data analysis, and looks at how environmental data can be used to better inform change and drive impact.



Will Team Photo2

Sustainability Communications and Engagement Officer, Will Ellis

Coordinates sustainability communication and engagement with the LSE community.

More about our Sustainability Communications and Engagement Officer

In this role, Will primarily coordinates multi-channel and stakeholder sustainability communications, manages the sustainability engagement programme at LSE (Green Impact), and organises sustainability-themed events/projects. All his work feeds into the themes of the Sustainability Strategic Plan, particularly 'Collaboration' and 'Our School'.



Chloe Sawyer

Environmental Manager, Chloe Sawyer (she/her)

Responsible for projects including our environmental and energy management systems. 

• Management systems

• Waste contracts

More about our Environmental Manager

In her role, Chloe works to improve the environmental performance of LSE. She manages the environmental and energy management systems (ISO14001 and ISO50001) and the waste contract. She is often involved in ad-hoc projects the sustainability team work on, from events to guidance documents, as it is required as part of working towards the Sustainability Strategic Plan.




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Sustainability lead – Operations and Maintenance, Dene Donkin (he/him)

More about our Operations and Maintenance sustainability lead

Dene is part of the Operations and Maintenance team and supports the School’s sustainability initiatives, with a key focus on energy and carbon reductions including driving energy efficiency across our campus and residences buildings.




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Sustainability Lead - Catered Halls, Ana Martinez Badia (she/her)

Sustainability Lead - Campus Catering, please contact Catering Admin

More about our Catering sustainability lead

The LSE Catering team work to embed sustainability and reduce the environmental impacts of our catering services. This includes: promoting the uptake of vegetarian and vegan options; improving the provision of healthy, sustainable, and ethical food; minimising waste energy and water consumption across operations. Find out more on the catering webpages.