Friday, November 19, 2021

Back to the future in B.C.

Vincent J. Curtis

19 Nov 21

RE: To glimpse our climate future see flooded B.C. Hamilton Spectator editorial 19 Nov 21.

The climate is changing all right.  In B.C. it’s reverting back to what it was in the 19th century, when CO2 levels were low, no one fought forest fires, and there were natural lakes around Abbotsford.  Drive away nature, and she returns at the gallop!

Climate change fanatics are often warned not to attribute individual weather events to climate change.  Weather is not climate, and climate is not weather.  But progressivism, being a brain-wasting disease, its adherents fall into that mistake all the time.  And this is one of those times.

The editorial errs when it said “warmer air passing over rising oceans absorb more water and produces more precipitation.”  Never mind the oceans aren’t rising, it was warm Pacific water that put moisture into the cool air above it.  (That’s why hurricanes strengthen over the Gulf of Mexico) And it’s differences in temperature not absolute temperature that forces precipitation.  The Arts Majors writing editorials got the physics wrong, again.  Oh, and a tenth of a degree here or there doesn’t make a hill of beans when it comes to the difference between a gentle fall rain and a torrential downfall.

Disappointed by COP26, the climate change fanatics are lashing out everywhere, and grasping at straws for re-assurance.

-30-

On a point of the physics.  If warm dry air passed over cold water it can absorb water and raise its relative humidity.  But it costs the air heat to evaporate water.  The air upon passing over the mountains would cool and if its relative humidity rose to saturation upon cooling, it would as rain in the mountains until the relative humidity fell below 100 percent.  But if air is warmed by water, it’s carrying a lot of humidity in consequence.  Upon meeting a cold front, the mixture cools until relative humidity reaches 100 percent, and then the rain falls.  This could happen near the coast, as it did.  The warm air, carrying lots of humidity, has a lot of rain to drop.  The whole business of climate producing a warmer atmosphere by fractions of a degree means nothing in this process.  Remember, it’s a temperature rise of 1.5 to 2.0 ℃ eighty years from now that they’re trying to stop.

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