New science: SEAS WILL RISE due to CO2 ... but not for centuries
(Photo credit: christine zenino)
A new, first-of-its-kind comprehensive scientific analysis has shown that there is little to fear from rising sea levels driven by global warming. The likelihood is that the 21st century will see rises much like those of the 20th, and even in the worst possible case sea levels in 2100 will be far below those foreseen by alarmists.
There's a catch, of course: on a timescale of many centuries, serious alarmist-type rises in sea levels are to be expected. Even if humanity ceases all carbon emissions right now, in the year 3000AD the seas will have risen by 1.1m, according to Professor Philippe Huybrechts and his team.
As most Reg readers know, the various land-based ice sheets and glaciers of planet Earth today hold enormous amounts of water. As and when they melt, the potential is there for huge rises in sea level. This has led climate-alarmist campaigners to suggest in reputable peer-reviewed journals that "scientists" generally expect the seas to rise by a metre or more - flooding millions of homes - as soon as the year 2100.
In fact even the reliably alarmist Intergovernmental Panel on Climate Change only forecasts 26-59cm rises in the 21st century, compared to the approximate 17cm seen in the 20th. That's because the vasty ice sheets of Greenland and Antarctica are so very vast that they will take a very long time indeed to melt, even under the much-elevated temperatures forecast under global warming theories.
“Ice sheets are very slow components in the climate system; they respond on time scales of thousands of years,” explains Professor Huybrechts.
According to a statement supplied to the Register:
The researchers believe this is the first study to include glaciers, ice caps, the Greenland and Antarctic ice sheets and the thermal expansion of the oceans into a projection of sea-level rises. They did so by using a climate modelling system called LOVECLIM, which includes components from a number of different subsystems.
The polar ice sheets are not normally included into projections due to computational constraints, whilst researchers often find it difficult to account for the 200 000 individual glaciers that are found all over the world in very different climatic settings.
Thus it is that the Professor Huybrechts and his colleagues, in new research published yesterday, estimate that even in the worst-case-possible situation the maximum rise in sea levels in 2100 will be approximately 30cm, well down at the low end of the IPCC range and less than twice the rise seen last century. More probably, the result will be lower and the 21st century will be much the same as the 20th in terms of sea levels.