If you’re thinking of nukes, we had New START, SALT, NPT, etc. and a shit ton of activism which significantly reduced the threat.
If you’re thinking of past claims that we’re “past the point of no return” for climate change, those claims were correct. We passed the point of no return for avoiding extreme weather due to climate change. Then we passed the point of no return for 1C of warming. Now we are nearing the point of no return for 1.5C of warming. Things are getting worse for the climate, which is why people keep saying that things are getting worse for the climate.
That said, apathy is counterproductive. We need hopeful children and adults to drive political and technological change. Therapy or other tools for reducing anxiety (e.g. exercise) could help people be hopeful.
That is not to say that ALL predictions are necessarily wrong, but enough to be wary of the fear mongering. Especially since dramatic predictions probably yield more government money.
Uh, really? There are any number of natural disasters that have been made many times worse by climate change, but ignorance is bliss I guess...
It can be compared to, "How many times can we change the solar system model before it's reasonable to be doubtful of the message? I think there have been at least 4 changes in what we believe to be the center of our universe in my rather short lifetime and there's always a new proposed center after each one is proven false."
It is a science. It is scientifically proven that the damage we have done to our climate is going to eventually cause very bad consequences. The only question is when, which is very difficult to pin down with constantly changing conditions. It's like trying to identify when the next tornado will hit. You don't know precisely when, you might have some false positives, but you know it will happen. You don't get to say, "Well this is the fifth time the meteorologist has told me to evacuate, I have reason to believe this is politically motivated".