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：目前计算产生的排放量几乎占世界总量的4 % 。 这已经超过了航空业的排放量,预计在未来20年内会急剧上升。 到2040年,单是计算产生的排放量将占排放预算的一半以上,使全球升温低于1.5 <unk> circ$C。 因此,计算产生的排放量增长是不可持续的。 计算设备生产产生的排放量超过操作产生的排放量,因此,即使设备能产生更多的能源效率,也会使排放问题更加严重。 因此,我们必须延长计算机设备的有用寿命。 作为一个社会,我们需要开始将计算资源作为有限和珍贵的处理,只在必要时使用,并尽可能有效地使用。 我们需要节俭计算:用更少的能源和材料实现我们的目标。</s>