EVS 1101 Lecture Notes - Lecture 2: Rare Earth Element, Copper Sulfide, Renewable Energy

• School: University of Ottawa
• Department: Environmental Science
• Course: EVS 1101
• Professor: Danielle Fortin

Document Summary

Rb"s (cid:374)e(cid:272)essar(cid:455) to redu(cid:272)e sulphate to sulphide. Physical resources essential to sustain life are limited with the exception of solar energy (ie water). To be sustainable, we would have to put back the same amount of resources we use back into the environment (zero net used resources) We (cid:374)eed to re(cid:272)(cid:455)(cid:272)le (cid:373)etals, (cid:272)a(cid:374)"t afford to throw out metals because of the finite amount of them. Use alternative sources of energy (wind, solar, water, etc) Rare earth ele(cid:373)e(cid:374)ts: do(cid:374)"t k(cid:374)o(cid:449) their effe(cid:272)ts, (cid:449)eird ele(cid:373)e(cid:374)ts o(cid:374) the bottom of the periodic table, mainly in the environment based on their use in cell phones. In south pacific, explorers found nothing left (trees) except stone structures. In years before, there was a sophisticated society on the islands, they cut down all the trees to carry the stones to outside of the island that (cid:862)prote(cid:272)t the(cid:373) fro(cid:373) e(cid:448)il(cid:863) They overused their primary resources, trees that were cut caused erosion.