It shows that the Solar Irradiance is more or less 'stable' and isn't the source of the increasing Temp.
The graph could have large scale but then the 'line' would be 'straight', then you'd be complaining that the scale wasn't small enough.
The question is; What will the 'changes' be in the future (10yrs,100yrs etc) if the increasing GHG continue hence the Temp increases?
