— e “­e don’t now how emissions c are affectin temperatures” r ou s Carbon dioxide traps infrared radiation such as that bout a emitted from the surface of Earth‚ …his can be measured% s n o and has been confirmed b­ decades of laborator­ mea„ i t s surements‚^ …he precise relationship between total co2 e emissions and total warmin is uncertain but we ƒnow qu the relationship is rouhl­ linear at current co2 concen„ trationsª the uncertaint­ is shown in the coloured plume in figure 3‚ — ‡ncertaint­ arises from an inexact understandin of ari„ ous feedbacƒ mechanisms includin how cloud formation and moement is affected b­ temperature and ice ersa‚ ¢ut contrar­ to some speculation natural cloud ariation has not caused climate chane‚& — Žurther uncertaint­ is caused b­ the amount of total incomin solar ener­ absorbed b­ the Earth‚ …hese include chanes in the coerae of ice sheets* and eetation‚( — “ncrease in temperature causes increases in co2 not the other way around” …here is a marƒed correlation between temperature and co2 concentrations‚ ²et correlation is not causation‚ — ¢ecause co2 traps heat ›see aboeœ ph­sics suests that more atmospheric co2 would cause increased tem„ peratures‚ lon these lines the hih surface temperature of ¯enus is thouht to hae been caused b­ a reenhouse effect drien b­ er­ hih co2 concentrations‚!) ” Žoote 1—”Ÿª …­ndall 1—Ÿ1 Ÿ °oƒimäƒi 200ž ¡ Dessler 2011ª ¢orenstein 2011 — Clarƒ et al‚ 1žžž ž Cox et al‚ 2000 10 ˆollacƒ et al‚ 1ž—0 21