Your comment is interesting to me. This isn't really a place where 'waste of time' articles are posted. And you've taken the time to wag your finger at OP, and look at the credentials of the website, but not look at the article itself. I'm not saying that to criticize, rather it makes me think about biases (that I have been looking at in myself).
We are in a world with overwhelming amounts of information, so that kind of vetting can make sense. But it also seems like a kind of information absolutism, where someone who believes in aliens can't be right about anything. The flip side being that someone with must be right about everything, even when it's a topic outside of their expertise. And the actual information seems peripheral to the trust in the source. OP found this through a source they trust, and I'm not saying that is a bad thing. I guess I'm just trying to strip away my own biases and use critical thinking with a more open mind.
But that's not what the article you linked said, so where are you getting 2050 from? The study says if CO2 continues to increase at the same current rate, we would be at the top end of the healthy max bicarbonate level by 2076. Do you have extra info that connects what is said in the article to 2050?