The 'Cloud' Is Not Weightless

Our digital world's convenience masks a heavy environmental cost. This lecture explores the destructive rare earth mineral mining powering our devices, the vast energy consumption of data centres fuelling climate change, and the toxic e-waste contaminating our environment and harming human health. From resource extraction to digital consumption, we'll uncover the environmental trade-offs of our tech-dependent lives and discuss pathways towards a sustainable digital future that minimizes degradation, protects health, and mitigates climate change.

This lecture was recorded by Ian Mudway on the 17th of February 2026 at Bernard’s Inn Hall, London

Dr Ian Mudway is Visiting Professor of Environmental Health. He is a senior lecturer in the School of Public Health at Imperial, a member of the MRC Centre for Environment and Health; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma and the NIHR-PHE Health Protection Research Units in Environmental Exposures and Health and Chemical and Radiation Threats and Hazards.

He has over 25 years of experience researching the impacts of air pollution on human health and in the development of assays to quantify the toxicity of the chemical cocktails that pollute the air we breathe. Over this period Dr Mudway has published over 100 research papers, reports and book chapters on these topics, as well as providing advice to the local, national and international governments and NGOs. Dr Mudway is passionate about the communication of science to lay audiences and has worked extensively with artists and educationalist to promote the public understanding of the risks associated with environmental pollutants. Currently his work is focused on understanding early life impacts of pollutants on the development of the lung and cognitive function in children living within urban populations, as well as  furthering our fundamental understanding of the mechanisms that drive these adverse effects and modify an individual’s susceptibility to air pollution

The transcript of the lecture is available from the Gresham College website: https://www.gresham.ac.uk/watch-now/price-pixels

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