I think you have made a couple of errors. First, how many satellites did we have 50 years ago? How many advancements have there been in sensors over that time?

I think you have made a couple of errors. First, how many satellites did we have 50 years ago? How many advancements have there been in sensors over that time? How much has compute capacity increased? Our level of data and observation has increased - trying not to exaggerate - a million-fold. With that, the algorithms and models have improved, too. It's like comparing a Pinto to a Tesla. Second, 50 year old forecasts have held up remarkably well. I will just point to Exxon's forecasts, under "Select ExxonMobil documents": https://en.wikipedia.org/wiki/ExxonMobil_climate_change_controversy#Select_ExxonMobil_documents https://en.wikipedia.org/wiki/ExxonMobil_climate_change_cont... They actually did a fair job in the 1970s and 80s of modeling the warming we've seen just based on first principals of measured CO2 greenhouse effects and atmospheric concentrations. Third, we are actually quite good at predicting the future! We can predict where a planet will be in a million years. It's basic Dunning-Kruger bias to think these professional trained scientist building these models don't understand nonlinear systems maths and the ways these systems diverge, couple, and otherwise interact. Fourth, "According to some" is the source of so many flawed conclusions. According to some, the world is flat. According to some, reality is based on the theory of the Time Cube. You can't go around quoting cranks to attack non-cranks. I don't know who or what you are talking about, but I have a very hard time believing a qualified individual thought GB would be under water in 2020 in 1970. And even if they did, times change and we know much more now. I hate to be out ahead of the mass psychology of awareness of the magnitude and criticality of climate change. It is very hard to digest how bad things are. This is data driven, though.