The Melting: Lize Spit

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I am not arguing that humans aren't contributing to the projected acceleration of the sea level rise rate. I am just arguing that we need to stop publishing articles that imply we can stop the rise if we just do . The freezing point of a solvent is depressed when another compound is added, meaning that a solution has a lower freezing point than a pure solvent. This phenomenon is used in technical applications to avoid freezing, for instance by adding salt or ethylene glycol to water. [ citation needed] Carnelley's rule [ edit ]

Anyway, sea level rise is not the only effect we need to worry about happening due to global warming. It is just the easiest one to predict and measure. Looking at atmospheric pattern changes is more complicated because there are many other short-to-medium-term changes adding "noise" to the trend lines. For instance, the Anaszi culture in the U.S. southwest seems to have been extinguished by a centuries-long shift in rainfall in that region, long before the industrial revolution. So, it is difficult to look at the current drought in the southwest as clearly due to global warming caused by humans. Hard to prove it is or is not. Because the Thwaites Glacier slopes down towards the sea, it is particularly susceptible to climate and ocean temperature changes that could lead to rapid and irreversible ice loss. The collapse of Thwaites would cause seawater levels to rise by around 2 feet (65 centimeters). This could, in turn, destabilize neighboring glaciers, potentially increasing future sea levels by almost an additional 10 feet (3 meters). So, this article is just looking at some of the melting mechanisms for one glacier at one point in time. And, it doesn't say how fast it is predicted to happen. So, not really much useful info. In fact, it seems to indicate that humans might somehow stop the melting.Probably not. Much of the melting is due to the cycles of the Earth's orbital precession and axis tilt precession. And the current parts of those cycles are heading towards more warming in the Antarctic and less in the Arctic. When those who lean right come out from behind the Wall of Denial and face up to the climate problem with eyes open, head on, we will begin seeing more constructive climate policies that are much more effective. Here T, ΔS and ΔH are respectively the temperature at the melting point, change of entropy of melting and the change of enthalpy of melting.

Frankly, I think it is probably better communication of the reality and severity of the sea level situation for the governments to be seen to be actively planning for that future, instead of just using it as a scare tactic and implying that the whole thing can be avoided. My own planning is that my present home may become unlivable with greater and greater probability over the next few decades, with the actual transition date depending on when a hurricane with the actual devastating effects hits here instead of somewhere else. It could happen this summer . It probably will happen in the next 30 years.

Upon further heating, they gradually soften, which can be characterized by certain softening points. Melting points are often used to characterize organic and inorganic compounds and to ascertain their purity. The melting point of a pure substance is always higher and has a smaller range than the melting point of an impure substance or, more generally, of mixtures. The higher the quantity of other components, the lower the melting point and the broader will be the melting point range, often referred to as the "pasty range". The temperature at which melting begins for a mixture is known as the solidus while the temperature where melting is complete is called the liquidus. Eutectics are special types of mixtures that behave like single phases. They melt sharply at a constant temperature to form a liquid of the same composition. Alternatively, on cooling a liquid with the eutectic composition will solidify as uniformly dispersed, small (fine-grained) mixed crystals with the same composition. For most substances, melting and freezing points are approximately equal. For example, the melting and freezing points of mercury is 234.32 kelvins (−38.83 °C; −37.89 °F). [2] However, certain substances possess differing solid-liquid transition temperatures. For example, agar melts at 85°C (185°F; 358K) and solidifies from 31°C (88°F; 304K); such direction dependence is known as hysteresis. The melting point of ice at 1 atmosphere of pressure is very close [3] to 0°C (32°F; 273K); this is also known as the ice point. In the presence of nucleating substances, the freezing point of water is not always the same as the melting point. In the absence of nucleators water can exist as a supercooled liquid down to −48.3°C (−54.9°F; 224.8K) before freezing. [ citation needed] The measurement can also be made continuously with an operating process. For instance, oil refineries measure the freeze point of diesel fuel "online", meaning that the sample is taken from the process and measured automatically. This allows for more frequent measurements as the sample does not have to be manually collected and taken to a remote laboratory. [ citation needed] Techniques for refractory materials [ edit ]