Add punctuation to the following sentence: The 2012 extremes in melt air temperature melt season duration runoff and albedo are shown to be unparalleled in the period with satellite and in situ observations on an icesheetwide scale
The 2012 extremes in melt, air temperature, melt season duration, runoff, and albedo are shown to be unparalleled in the period with satellite and in situ observations on an ice-sheet-wide scale.