EARTHSS 21 Lecture Notes - Lecture 6: Representative Concentration Pathways, Milankovitch Cycles, Ocean Fertilization
21 Jul 2016
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Document Summary
Increase in frequency of heat waves in europe, asia, and australia. Oceans: temperature, warmed at the surface to some extent. Increase in heat reaches a depth of 3km: increase in sea level, melt of the cryosphere contributes a lot to the increase in sea level. C: sun spots: changes in sun spots increase radiation. Albedo/how light is reflected, how energy is emitted. Humans have raised co2 levels through: electricity generation, transport, manufacturing (fossil fuels) 25% has gone into our oceans (leading to ocean acidification) Biosphere: the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms. Representative concentration pathways (rcps) are essentially ideas for what the future might look like. Emissions graph shows that we have to go into the negatives (meaning we need to capture carbon) Decrease in ph in the worst case scenario (more acidic)
