Microsoft Corporation: Sustainability Policies for Electronic Waste — As You Sow https://www.asyousow.org/resolutions/2021/06/16-microsoft-sustainability-policies-for-electronic-waste

これの"length of its useful lifetime"って文字列のリンク先のpdf、まだ最初の方しか読んでないけど興味深いかも＞＜