If the field is spatially uniform, it must be extremely strong — stronger than the fields that drive lightening through air — and the mixture must be within a few hundredths of a degree of the critical temperature. (sciencemag.org)
However, changes to the Sun's brightness are believed to have altered temperatures on Earth by no more than a few hundredths of a degree in the last 150 years. (realclimate.org)
Will a new record by a few hundredths of a degree really mean much? (realclimate.org)