Chasing Carbon: The Elusive Environmental Footprint of Computing

Given recent algorithm, software, and hardware innovation, computing has enabled a plethora of new applications. As computing becomes increasingly ubiquitous, however, so does its environmental impact. This paper brings the issue to the attention of computer-systems researchers. Our analysis, built...

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Bibliographic Details
Published inProceedings - International Symposium on High-Performance Computer Architecture pp. 854 - 867
Main Authors Gupta, Udit, Kim, Young Geun, Lee, Sylvia, Tse, Jordan, Lee, Hsien-Hsin S., Wei, Gu-Yeon, Brooks, David, Wu, Carole-Jean
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.02.2021
Subjects
Carbon dioxide
carbon footprint
Computer architecture
Data center
energy
Energy consumption
Hardware
mobile
Software
Software algorithms
Technological innovation
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Summary:Given recent algorithm, software, and hardware innovation, computing has enabled a plethora of new applications. As computing becomes increasingly ubiquitous, however, so does its environmental impact. This paper brings the issue to the attention of computer-systems researchers. Our analysis, built on industry-reported characterization, quantifies the environmental effects of computing in terms of carbon emissions. Broadly, carbon emissions have two sources: operational energy consumption, and hardware manufacturing and infrastructure. Although carbon emissions from the former are decreasing thanks to algorithmic, software, and hardware innovations that boost performance and power efficiency, the overall carbon footprint of computer systems continues to grow. This work quantifies the carbon output of computer systems to show that most emissions related to modern mobile and data-center equipment come from hardware manufacturing and infrastructure. We therefore outline future directions for minimizing the environmental impact of computing systems.
ISSN:2378-203X
DOI:10.1109/HPCA51647.2021.00076