It's hard to judge change in climate by using man made objects while ignoring all the other man made changes that took place over a period. Like dzc3 said, land use and ability of the ground to retain water has changed drastically. In 1937 airports, parking lots, many roads, whole areas that are paved today were grass or dirt. You didin't have storm drains pushing water to the river. We see that up here too. It changes the stats. I'm not saying the climate down't change or that man doesn't have an effect. I'm saying the climate is constantly changing and man can't control the sun or weather patterns.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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