As a surveyor I've studied celestial geometry and understand how to use astronomical objects to find directions on the ground. But, this is not nearly that complicated. This is simple measurement of the vertical angle of the sun that anyone with a few skills of using a measuring tape, a plumb bob and trigonometry. By installing a sun pole, a simple vertical pole or straight staff in level ground and marking the shadow of the tip of the pole at intervals near noontime, before during and after, one can determine the correct time of measurement and the vertical angle of the sun. Here is what it looks like on the ground. Another way which is quicker and easier, once a person knows the correct time of the solar noon, is to use a simple handheld survey instrument called an Abney. It measures vertical angles directly. The one I use is about the most accurate and measures angles to the nearest 10 minutes of arc. This is what it looks like. the critical measurements began July 5th when a vertical angle of 14 degrees was measured. I did this because of an image taken in Sumatra of a handful of hail ice that had fallen for the first time. It was posted on Facebook. The sun historically is always at 23.5 degrees except for variances of 1 degree greater and smaller every 40k years or so. I began measuring about once a week. On July 17 I measured 12 degrees 50 minutes. I last measured 8/19/18 and found an angle of 21 degrees 20 minutes. Clearly, something is very wrong with the earths axis, and it appears to be at least an 8 degree wobble which explains the radical climate change since 2014. This is not to say that greenhouse gasses are not also causing warming in the long term. Clearly, humanity needs to move away from fossil fuels as zoo as possible, they are very toxic in the short term.