Answer to all your questions: Including the aerosol diversion & the sun,volcanoes and every other myth you may want to cling to that avoids the obvious answer to all.<quoted text>
How long long do aerosols from volcanoes usually stay in the atmoshere? It seems like we had already seen the effects of cooling from Mount Pinatubo. Is that normal to have a delayed effect? Since Hansen is admitting it is the sun, it just seems as though everyone shouldn't be so quick to dismiss the cosmic ray theory. Plate tectonics was also dismissed initially.
The natural cycle adds and removes CO2 to keep a balance; humans add extra CO2 without removing any.