Is the Earth Warming?

Yes, Virginia, global warming is occurring. Two graphs in particular illustrate this fact. First a plot of global temperatures compiled by Richard Muller at Berkeley from 1750 to the present shows that there has been an accelerating rise in temperatures since at least 1900. Before that, the uncertainty removes any firm conclusion.

 Temperature, CO2, and volcano data | More recent data | High-resolution image;  Land temperature with 1- and 10-year running averages. The shaded regions are the one- and two-standard deviation uncertainties calculated including both statistical and spatial sampling errors. Prior land results from the other groups are also plotted. The NASA GISS record had a land mask applied; the HadCRU curve is the simple land average, not the hemispheric-weighted one.
Temperature, CO2, and volcano data | More recent data | High-resolution image Land temperature with 1- and 10-year running averages. The shaded regions are the one- and two-standard deviation uncertainties calculated including both statistical and spatial sampling errors. Prior land results from the other groups are also plotted. The NASA GISS record had a land mask applied; the HadCRU curve is the simple land average, not the hemispheric-weighted one.

 

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