BIOLOGY 1B Lecture Notes - Lecture 24: Overgrazing, Sea Level Rise, Exponential Growth
Document Summary
The carbon cycle and the global climate change. Climate explanation, human explanation, asteroid explanation (13-(cid:1005)(cid:1006)ka(cid:895) t(cid:396)igge(cid:396)ed global pooling event. Around 1600, we have around 500 million people around the world. Birth rate and death rate in sweden and mexico before 1850 was relatively high; high birth rates, high death rates. After their industrial revolutions, there is a declining death rate, but birth rate still manages to maintain its high rate. Eventually reaches low birth and low death rates. A(cid:396)ea (cid:449)he(cid:396)e (cid:271)i(cid:396)th (cid:396)ates sta(cid:455) high a(cid:374)d death (cid:396)ates d(cid:396)op (cid:396)e(cid:272)ipe fo(cid:396) populatio(cid:374) e(cid:454)plosio(cid:374) E(cid:454)pla(cid:374)atio(cid:374) fo(cid:396) de(cid:272)li(cid:374)i(cid:374)g death (cid:396)ate (cid:271)ette(cid:396) h(cid:455)gie(cid:374)e, (cid:271)ette(cid:396) (cid:374)utrition (food), running water, hospitals, better health care. E(cid:454)pla(cid:374)atio(cid:374) fo(cid:396) de(cid:272)li(cid:374)i(cid:374)g (cid:271)i(cid:396)th (cid:396)ate t(cid:396)a(cid:374)sitio(cid:374) f(cid:396)o(cid:373) ag(cid:396)i(cid:272)ultu(cid:396)al to u(cid:396)(cid:271)a(cid:374) e(cid:374)(cid:448)i(cid:396)o(cid:374)(cid:373)e(cid:374)t; kids become expensive instead of helpful (urbanization) , access to contraceptives, better professional oppo(cid:396)tu(cid:374)ities, t(cid:448)"s (cid:894)soap ope(cid:396)as(cid:895) Used to represent human population as age-structure pyramid.
