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Stockholm Environment Institute at York

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Welcome to SEI York

The Stockholm Environment Institute at York is one of the constituent centres of the Stockholm Environment Institute, an independent, international research organisation committed to the implementation of practices supportive of global sustainable development.

SEI conducts a comprehensive research, consulting and training programme which focuses on the links between the ecological, social and economic systems at global, regional and national and local levels. SEI was ranked as the world's most influential think tank on environmental policy in the 2016 Global Go To Think Tank Index.

The York centre is located within the Department of Environment and Geography at the University.


Equality and Diversity

Athena Swan Bronze Award

SEI received the Athena SWAN Bronze Award with the Department of Environment and Geography in 2014 in recognition of the support offered to staff. Read more about the award here.

Our research

ozone Research

The York centre’s research falls into five broad categories: air quality and climate change; nature-society relations; sustainable consumption and production; managing natural resources; and urban environments and human health. View our recent projects here.


Postgraduate Study at SEI

Find out more about doing a PhD at SEI York. Photo: University of York - John Houlihan
Fancy doing a PhD with SEI York? We offer a number of opportunities to undertake postgraduate study. Find out more...



Regional conference recommends citizen science as a people’s tool for achieving Sustainable Development Goals

Wednesday 4 November 2020

SEI's Rachel Pateman describes how citizen science can address chemical and waste issues that threaten public health and the environment

SEI joins global response to address clean air

Tuesday 8 September 2020

Webinars, policy brief, interactive guide and rock star support.


Annual Report 2019 

2019 marked SEI's 30th Anniversary working at the forefront of sustainability.

SEI Annual Report 2019

Read about the history of SEI and how it achieved change in policy and practice across the globe in 2019. 

Download the SEI Annual Report 2019 (PDF, 5 Mbytes)