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There is a very real difference between absolute and relative measurement. Absolute measurement is one value eg. from x to y, where x and y are fixed starting and ending points. A relative measurement can have different value as x or y is not fixed . making it always necessary to specify the relative context. That is measured from where to where. This is not an original concept it is not a difficult or obscure fact of physics/math. Why are we treating climate change as if global temperature is a singular absolute measurement ? We know the temperature varies and though we may say that the end point ,modern day is a roughly fixed point , the start point of measurement is changeable depending on the choice of the person measuring. That gives a relative measurement. if we choose to measure from the start of industrialization the Earth is still warming after the medieval 'little ice age. co2 rise may be correlated but not causative. It is a limiting factor to plant growth, giving a greener world. Whereas measuring from an estimate of the 'Roman warming' to now shows net cooling. Thank you to Dr. Patrick Moore for some sanity on the issue that is misleading global politicians and the undemocratic WEF. We do not need AI to save us from climate catastrophe. We need to understand the difference between absolute and relative.