Global Sea Level ‘Acceleration’ Just 0.002 mm/year²
According to peer-reviewed, “consensus” climate science, anthropogenic CO2 emissions are the cause of Arctic sea ice decline. In fact, peer-reviewed, “consensus” climate science indicates the causal relationship is so direct and so linear that it can be said with confidence that we humans melt one square foot of sea ice for every 75 miles we travel in a gasoline-powered engine.
The modeled results are even more alarming for the polar ice sheets. Like Arctic sea ice, the peer-reviewed, “consensus” climate science says that there is a direct, causal relationship between the magnitude of our CO2 emissions and the magnitude of polar ice sheet melt. Therefore, by driving our vehicles and heating our homes we are catastrophically melting the Antarctic and Greenland ice sheets to such a degree that our CO2 emissions will likely cause sea levels to rise 10 feet during the next 50 years (by 2065).
Ten feet is the equivalent of about 3.05 meters of sea level rise by 2065.
So, according to peer-reviewed, “consensus” climate science, the catastrophic melting of the polar ice sheets will produce 0.61 of a meter of sea level rise per decade, which is 61 mm/year, over the course of the next 50 (now 48 – a 2015 paper) years. To achieve this, more than an order of magnitude greater sea level rise acceleration will need to begin . . . immediately.
The trouble is, the physics, and reality, do not support “mainstream” climate science models predicated on anthropogenic CO2 emissions as the principal driver of ice sheet melt and sea level rise. For example:
1. East Antarctica, which comprises two-thirds of the continent, has been gaining mass since 2003 (Martín-Español et al., 2017).
2. The Western Antarctic Peninsula has been rapidly cooling since 1999 (-0.47°C per decade), reversing the previous warming trend and leading to “a shift to surface mass gains of the peripheral glacier” (Oliva et al., 2017).
3. The Greenland ice sheet (GIS) has been melting so slowly and so negligible in recent decades that the entire ice sheet’s total contribution to global sea level rise was a mere 0.39 of a centimeter (0.17 to 0.61 cm) between 1993 and 2010 (Leeson et al, 2017). That’s a sea level rise contribution of about 0.23 mm/year since the 1990s, which is a canyon-sized divergence from the 61 mm/year that adherents of peer-reviewed, “consensus” climate science have projected for the coming decades.
And now Australian scientists have published a new paper in the journal Earth Systems and Environment that “does not support the notion of a rapidly changing mass of ice in Greenland and Antarctica.” The paper highlights the “loud divergence between sea level reality” and “the climate models [that] predict an accelerated sea-level rise driven by the anthropogenic CO2 emission.”
In fact, the key finding from the paper is that long-term observations from tide gauges reveal a “recent lack of any detectable acceleration in the rate of sea-level rise.” The modern rate of sea level rise acceleration – 0.002 mm/year² – is so negligible it falls well below the threshold of measurement accuracy.
The lack of a detectable global-scale sea level rise acceleration recorded in tide gauge measurements isn’t a novel finding. In recent years, dozens of other scientists have bravely come forward to challenge “consensus” modeling that implicates anthropogenic CO2 emissions as the preeminent cause of ice sheet melt and sea level rise.
Perhaps at some point, “consensus”-based climate science will jettison its focus on models and projections of perilous future climate states directly caused by anthropogenic CO2 emissions and instead embrace the observational evidence that may undermine the alarm.
Until then, we will likely need to continue learning about how many millimeters we humans raise sea levels for each kilometer we drive in our fossil-fuel-powered vehicles. Because that’s how “consensus” climate science works.
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