Gresham College Lectures

The Price of Pixels: Unmasking the Environmental Impact of Our Digital Lives - Ian Mudway

17 snips
Feb 27, 2026
Dr Ian Mudway, environmental health researcher at Imperial College with 25+ years studying pollution and health. He exposes the material and human costs of our devices, from rare-earth mining and artisanal cobalt harms to toxic e-waste and data-centre energy and water use. He also interrogates AI’s growing resource demand and urges ethical, high-value digital choices.
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ANECDOTE

Artisanal Mining Scenes In Congo

  • Investigations show widespread artisanal cobalt mining in the DRC with child labour, unregulated tunnels and frequent tunnel collapses.
  • Dr. Ian Mudway cites satellite GIS mapping and on-the-ground photos revealing tarpaulins, holes and children covered in acid-laced dust.
INSIGHT

Mining Has Poisoned Local Water And Land

  • Water sampling near mining sites found heavy metal levels massively above WHO limits (e.g., cobalt and lead thousands of times over).
  • Contaminated water, soils and loss of agricultural land compound food and health insecurity.
INSIGHT

Human Cost And Poor Wages In Cobalt Mining

  • A regional study of 1,431 miners found 36.8% met forced labour criteria, average income USD $3.28, women earning ~USD $1.84.
  • Nearly two-thirds reported chronic illness linked to mining conditions.
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