Over each of the past several centuries, including the last one, sea levels rose by about 7 inches (18 cm).
Accordingly, neither the overall warming trend or sea level rise began with the fossil-burning Industrial Revolution… nor have they changed in any detectable way due to human influences. And we can’t even really know that the second follows the first. Sea levels rose during the Little Ice Age from about 1400-1859 AD… a period which was considerably colder than now.
Unlike floating sea ice (the Artic) which doesn’t influence sea level when it melts, the West Antarctic Ice Sheet is part of the land mass. When it melts, it adds to sea level just as melting glaciers do. The end of the last Ice Age 18,000 years ago caused the sea level to rise by a huge amount…about 400 feet. This change happened rapidly at first, caused primarily by the melting of huge ice sheets covering North America and Eurasian land masses which disappeared about 8000-5000 years ago.
The West Antarctic Ice sheet began to melt at that time also, but at a much slower rate, and that melting continues today. We might expect this melting to continue until it is gone in another 7,000 years or so… or until the next Ice Age, whichever comes first.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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