They might yield the same average global temps, but the distribution of temperatures will not be the same. (green.blogs.nytimes.com)
Owen says: September 23, 2010 at 5:41 am This fuss will be moot in 20 years when average global temps have continued on their upward trajectory, rising clearly above the MWP. (wattsupwiththat.com)
The 0.3 C figure is for average global temps, not the continental masses of the NH. (realclimate.org)