This is the second in a series by Cornwall Alliance Senior Fellow Roy W. Spencer, Ph.D. (Meteorology), Principal Research Scientist, University of Alabama at Huntsville, exposing media bias in reporting about climate change. This first appeared as part of a longer article by Dr. Spencer on his blog.
The Greenland ice sheet gains new snow every year, and gravity causes the sheet to slowly flow to the sea where ice is lost by calving of icebergs. How much ice resides in the sheet at any given time is based upon the balance between gains and losses.
During the summer months of June, July, and August there is more melting of the surface than snow accumulation. The recent (weather-related) episode of a Saharan air mass traveling through western Europe and reaching Greenland led to a few days of exceptional melt. This was widely reported as having grave consequences.
Forbes decided to push the limits of responsible journalism with a story title, Greenland’s Massive Ice Melt Wasn’t Supposed to Happen Until 2070. But the actual data show that after this very brief period (a few days) of strong melt, conditions then returned to normal.
The widely reported Greenland surface melt event around 1 August 2019 (green oval) was then followed by a recovery to normal in the following weeks (purple oval), which was not reported by the media.
Of course, only the brief period of melt was reported by the media, further feeding the steady diet of biased climate information we have all become accustomed to.
Furthermore, after all of the reports of record warmth at the summit of the ice cap, it was found that the temperature sensor readings were biased too warm, and the temperature never actually went above freezing.
Was this reported with the same fanfare as the original story? Of course not. The damage has been done, and the thousands of alarmist news stories will live on in perpetuity.
This isn’t to say that Greenland isn’t losing more ice than it is gaining, but most of that loss is due to calving of icebergs around the edge of the sheet being fed by ice flowing downhill. Not from blast-furnace heating of the surface. It could be the loss in recent decades is a delayed response to excess snow accumulation tens or hundreds of years ago (I took glaciology as a minor while working on my Ph.D. in meteorology). No one really knows because ice sheet dynamics is complicated with much uncertainty.
My point is that the public only hears about these brief weather events which are almost always used to promote an alarmist narrative.
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