Venus has twice the irradiance, 90 times the atmosphere, no significant phase change cycles, no water to absorb energy, slow diurnal rotation. Just do a comprehensive experiment on Earth, it will do us more good.
Alt_Lok
30d ago
Urban albedo changes are small but skew temp measurements. I am more inclinde to consider agricultural albedo changes as a darkening of 11% of all land for around 4 months of the year is in line with observed warming and in a similar trend. This also explains the warming affecting the Northern Hemisphere more than the southern as is claimed in the observations. This is also in line with winters becoming milder, as dark tilled and usually wet land has a high absorbtivity compared to grassland or other forms of pasture.
We are already geoengineering the Earth via agriculture. Apparently it occupies around 11% of the land surface and lets see what we did to that land. In general before agriculture that land was pasture or forests, which have their complex ways to mitigate heat absorption and emission throughout the year. We replaced those with arable land, which for at least 4 months of the year sits barren tilled and mostly wet. This resulted in around 3% of the Earths surface absorbing around twice the usual amount. This is significant and is in line with observed warming trends of the winters in the Northern Hemisphere. If this is the case then the current warming is anthropogenic, not really problematic and will plateau at some point. This can also be mitigated by adjusting tilling practices, but the question arises, do we want to?
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