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- Lord of Planar claiming that only a fraction of the temperature increases can be attributed to greenhouse gases, asserting at different times that both solar variation and albedo have had larger effects
I assert more than just that, but I claim the aggregate of many factors making greenhouse gasses less significant.
You forgot the combination of things.
Soot on ice.
Atmospheric transparency changes due to aerosols.
Inaccurate temperature records and corrections due to the urban heat island effect.
Increased temperature measurements close to urban areas due to losses in evapotranspiration over the years of urban buildup.
The different dynamics of the oceans thermal inertia of shortwave vs. longwave.
Only the direct forcing of solar used rather than its ECS.
I may have forgotten a few items.
Among the changes that probably have a larger effect than greenhouse gasses are the atmospheric transparency, solar, and albedo.