As computing power continues to grow, theoretical physicists have been able to do larger and more complicated simulations. Running these models consumes a growing amount of energy, and for the time being, this results in more greenhouse-gas emissions that contribute to climate change. Indeed, doing an intensive supercomputer simulation can result in emissions that are on par with taking a long-haul flight.

In this episode of the Physics World Weekly podcast, <a href="https://www.uv.es/gaita/about.html">Alejandro Gaita</a> and <a href="https://www.icmol.es/rtmm/">Gerliz Gutiérrez </a> of Spain’s University of Valencia tell Physics World’s Margaret Harris how the physics community can reduce its computing-related carbon emissions.
Gaita and Gutiérrez are theoretical materials physicists and they argue that scientists should take a frugal approach to computer modelling, which can achieve scientifically relevant results while minimizing energy consumption.
<ul>
<li>Gaita and Gutiérrez describe practical examples of frugal computing in this article, which was co-written by Valencia’s <a href="http://www.molmattc.com/portal/index.php/members">Aman Ullah</a>: “<a href="https://arxiv.org/abs/2401.13618">A call for frugal modelling: two case studies involving molecular spin dynamics</a>”.</li>
</ul>

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Frugal approach to computer modelling can reduce carbon emissions

Physics World Weekly Podcast