SCI1300 Final: review
Document Summary
-first peer-reviewed paper to mention global warming : wallace broecker,1975: a(cid:396)ti(cid:272)le usi(cid:374)g (cid:862)glo(cid:271)al (cid:449)a(cid:396)(cid:373)i(cid:374)g(cid:863) i(cid:374) the new yo k time (cid:396)a(cid:374)ked afte(cid:396) that. -identified co2 as a greenhouse gas: eunice foote,1856 simple experiment to show. Put an candle inflamed in the air, but when put into carbon dioxide, the flame disappear. Because co2 trap the heat and the heat of candle can no longer reach the camera. Increase more and more rapid, increasing co2 concentration in the last 150 years. And many other data sets confirm the warming: ipcc ar5. Observed northern hemisphere spring snow cover, artic summer sea ice extent, change in global average upper ocean heat content, global average sea level change. All time-series shoe annual values, and where assessed, uncertainties are indicated by coloured shading. Active volcanoes add small amounts of co2 to the atmosphere as well as ash and sulphur dioxide.
