gfm7175
Platinum Member
- Mar 22, 2019
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It's a circularly-defined buzzword which allows them to apply it to ANY weather situation, not just "warming" specifically. Global Warming is also a circularly-defined buzzword. Neither word holds any meaning outside of itself.So Climate Change is just another word for Global Warming?
No, there is not.If so, is there clear and quantifiable evidence that the Earth as a whole is warming?
There is no way to accurately measure "global temperature". Claiming that there is ends up rejecting both science and mathematics. Going the land-based thermometer route, it is mathematics that is being rejected. First, one needs to declare how many thermometers they are using. NASA claims approx. 7,500 of them, so let's use that number. Second, they need to be uniformly spaced and simultaneously read by the same observer [to avoid location and time biases]. They are NOT spaced/read this way, but for argument's sake, let's just say that they are. Third, range/variances need to be declared. Regarding temperatures, the possible range is currently 262deg F [-128deg F low, 134deg F high]. Temperatures have also been known to vary by as much as 20degF per MILE, and 49deg F per TWO MINUTES (showing how close we need each thermometer and how all thermometers need to be simultaneously read by the same observer). Fourth, we need to plug these numbers into the situation. Now, Earth has some 197 million sq miles of surface area, so to only use 7,500 thermometers would amount to any single thermometer covering a surface area of approx. 26,000 sq miles, or approx. an area the size of West Virginia. Now, can ALL of W. Virginia be accurately measured with a single thermometer?? I think not... In fact, in order to bring the margin of error down to +-10deg F, we would need at least 200 million thermometers.
Going the satellite route instead for "global temperature" rejects science. Satellites don't measure absolute temperature; they measure light. That light reading would then need to be converted into a temperature reading. The problem with this, however, is that the emissivity of Earth is unknown. We don't know how much light is a result of Earth's emission nor how much light is a result of the reflections of other things, such as sunlight/starlight... And, in order to figure out Earth's emissivity, we need to first know the answer to what we are looking for to begin with, Earth's temperature. Chicken and Egg.