But carbon emissions are bad at the level we currently have them at. So an article talking about freezing our current CO2 levels and how that would still be bad for the environment is redundant, is it not? Thus the really hard duh "why bring it up?" But we climate change supporters can all agree that the earth is too heavily populated correct?
It's an article from a respected newspaper.
The problem is that many people seem to ignore what is called "English grammar".
What the article CLEARLY says is "Seas will continue to warm for centuries even if manmade greenhouse gas emissions were frozen at today’s levels, say US government scientists"
Now, I can understand what this say. It doesn't say sea levels will be frozen. It says "If sea levels were frozen", that's conditional. It means if this happens then that will happen. If not then it might not.
Basically, if man made global warming were to remain at this point, we'd have problems. It doesn't say things will remain, in fact most intelligent people would surmise that things will get worse, and the sea levels will also probably rise more than what would happen if they were at the same levels as now.
So the "duh" really is on you. You've managed to take an article written in perfectly good English, and you'd managed to read it so badly that you can't understand what it says.