Email signatures are harming the planet and could cost people their lives — it’s time to stop using them

By Joshua M. Pearce, John M. Thompson Chair in Information Technology and Innovation and Professor, Western University

The use of information technology (IT) has significant environmental and social impacts, including human mortality from climate change. One striking example is the carbon emissions and impacts associated with digital communication.

To quantify the human cost of carbon-emitting technology, researchers use the 1,000-ton rule that estimates that for every 1,000 tons of carbon dioxide released…

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