- I did address fall and winter aldebo in the post above:
"The snow not sticking around is a big deal and not just for skiers. Snow reflects sunlight which helps cool the planet. Less snow cover in the spring and summer causes more global warming because the days are longer so receiving more energy from the sun for longer enhances the greenhouse effect."
It should be apparent higher latitude arctic/antarctic fall/winter albedo is less of a factor when there's decreasing sunlight. Rutgers defines winter in the northern hemisphere as December-through-Janauary, so how much sunlight is there in places like Alaska, northern Canada, Siberia, the Arctic winter etc., winter compared with the summer?
- The reason why climate sensitivity presents problems is mostly because of feedbacks. It's a systems problem, not a lack of understanding the individual components. People with engineering, econ, statistics, earth science etc. backgrounds understand the distinction all too well.
- Per ron's article the sun varies in the amount of light it emits by only 0.1 percent over the course of a relatively stable 11-year-long pattern known as the solar cycle. So the argument isn't that solar activity has no effect, the argument is the denier claim that all warming can explained by solar activity is false.
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