The current emissions from computing are almost 4% of the world total. This is already more than emissions from the airline industry and are projected to rise steeply over the next two decades. By 2040 emissions from computing alone will account for more than half of the emissions budget to keep global warming below 1.5$^\circ$C. Consequently, this growth in computing emissions is unsustainable. The emissions from production of computing devices exceed the emissions from operating them, so even if devices are more energy efficient producing more of them will make the emissions problem worse. Therefore we must extend the useful life of our computing devices. As a society we need to start treating computational resources as finite and precious, to be utilised only when necessary, and as effectively as possible. We need frugal computing: achieving our aims with less energy and material.

翻译：当前计算领域的碳排放约占全球总量的4%，已超过航空业的排放量，预计未来二十年将急剧上升。到2040年，仅计算领域的排放就将占控制全球变暖不超过1.5°C所需排放预算的一半以上。因此，计算排放的增长是不可持续的。计算设备生产过程的排放大超过其运行过程的排放，因此即使设备能效更高，生产更多设备也将加剧排放问题。我们必须延长计算设备的使用寿命。作为社会整体，我们需要将计算资源视为有限且珍贵的资源，仅在必要时尽可能有效利用。我们需要节俭计算：以更少的能源和材料实现目标。