[MrsEmmaPeel]

Right now, there is not dfiintive proof of the cause of global warming. There are competing theories.

Not from astronomers. Solar output -- solar output -- solar output.

[gondramB]

" Not from astronomers. Solar output -- solar output -- solar output."

At the absolute most, solar radiation may explain 35% of the wroming onver the lat 20 years and most reputable scientists think it explains 10% or less.

It doesn't at all explain the behavior prior to the last 20 years.