I agree totally with everything you said about MVTG and weather... etc, but let me add this.
Many processes are non linear, including weather patterns. There is recent evidence that the last several ice ages did not take 1000s of years or hundreds to happen. The most recent data shows they were massive overnight events as short as 10 years that reached an inflection point in the stability of the atmosphere and weather and then suddenly changed as a critical inflection point made the weather unstable and the weather shifted to a new stable point leading to a long term ice age.
The problem with rising CO2 levels is that we are nearing the trigger point, the inflection point for CO2 to trigger a massive long term shift in climate that will no longer support billions of humans. A shift that man can not reverse. That is why substantial action to reduce CO2 emissions is so badly needed yesterday and today and almost any cost.
An abrupt climate change occurs when the climate system is forced to transition to a new climate state at a rate that is determined by the climate system energy-balance, and which is more rapid than the rate of change of the external forcing.[1] Past events include the end of the Carboniferous Rainforest Collapse,[2] Younger Dryas,[3] Dansgaard-Oeschger events, Heinrich events and possibly also the Paleocene-Eocene thermal maximum.[4] The term is also used within the context of global warming to describe sudden climate change that is detectable over the time-scale of a human lifetime. One proposed reason for the observed abrupt climate change is that feedback loops within the climate system both enhance small perturbations and cause a variety of stable states.[5]
Timescales of events described as 'abrupt' may vary dramatically. Changes recorded in the climate of Greenland at the end of the Younger Dryas, as measured by ice-cores, imply a sudden warming of +10°C within a timescale of a few years.[6] Other abrupt changes are the +4 °C on Greenland 11,270 years ago[7] or the abrupt +6 °C warming 22 000 years ago on Antarctica.[8] By contrast, the Paleocene-Eocene Thermal Maximum may have initiated anywhere between a few decades and several thousand years. Finally, Earth Systems models project that under ongoing greenhouse gas emissions as early as 2047, the Earth's near surface temperature could depart from the range of variability in the last 150 years, affecting over 3 billion people and most places of great species diversity on Earth.
See the link for the rest of the science behind this.
This is one major reason MVTG is a long term buy and hold stock!!!!