Logicus I don't care if global warming is real or not. And temperatures have been rising since the close of the last ice age.
That isn't right. We had a string of ice ages which accompanied a general cooling trend. Obviously there was a rise as the most recent ice age ended, but then temperatures remained stable for 10 thousand years or so. Now they are rising.
I don't care if the polar ice cap melts. It should be great for new shipping routes.
First, the mass of ice that is melting fast isn't on the sea. If the mass of ice on Greenland melts then it will create new shipping routes in places we don't want them, e.g. over where a lot of us live!
The loss of ice cover (which is reflective) will also accelerate warming. Remember, the curent gentle background warming caused by our release of CO2 isn't the big problem. What is worrying is that this warming will set off a cascade of other effects, like melting the polar ice, or releasing methane as the permafrost swamps melt - it is these 'natural' sources of greenhouse gases that will do the big damage.
I don't care if CO2 is rising. The plants will love it. You can't get any "greener" than that.
Plants would only 'love it' if a shortage of CO2 was currently restricting their growth. But vegetation is adjusted to the way things are now; if we change that, then it might benefit new species, but humans and animals have evolved to live off the current assortment.
When the ice covering Antarctica finally melts, it will open up a whole new continent. Another New World: I can't wait.
But the new continent won't have any soil etc., while we will lose the use of a lot of the continents we already have.
I think what you miss is that humans have an awful lot invested in the way things are now; if there are changes in things like sea level or local weather, any adjustment is going to be enormously expensive. And it isn't as if fossil fuels are going to last forever anyway.