I can observe people getting sick with covid, i can observe 60 degree weather in the winter and weeks long heat waves, this isnt the news, or misremembering things
And there are many explanations that could explain heat waves, you can't use your eyes to justify an acceptance of the global warming explanation. All you've done is accepted the dominant narrative on faith.
Face it, you just don't know what is true. You can't know as an individual.. all you can do is hope that the people who say they know, actually are correct. But that requires trust and faith.
A physicist may not have personally built up mathematics from the base axioms, but he/she can trust that he/she can apply the learnt formulas when appropriate without it, because there are others who done so, and there are overlaps between all these. Similarly, while there are some problem with reproducibility in sciences (often it is due to lack of knowledge of statistics), there are large agreements in the science community on basic facts.
Understanding science is a mentally challenging thing, and we are by nature lazy. That doesn’t make the easier to understand alternative true.
The universe is always capable of surprise. We are trapped forever with a limitation in what kind of pronouncements we can make about truth. The best we could ever say, is that something appears to be true today.
For instance, there is a chance that we are actually in a simulation -- that we're literally just a running computer program. If that is the case, the programmers of that simulation could change the instructions that control our physics at any moment. And everything that you have declared "true" will have to be reevaluated.
This might seem unlikely, but it is not impossible, and so science has to keep an open mind and hedge its bets when making any declaration about reality. Science can only give you a probability that something is true, it can not ever say things with 100% confidence.
Science does have some “dependency” on the philosophy of sciences, and while pedantic, simulation is a possibility, but so is “the world popped into existence this morning in a state that we have a collective memory of an imaginary past, and with dinosaur bones in the ground etc”. But this requires much much more presupposition than the scientifically accepted position with the Big Bang et al.
And in my view, it is only of limited importance to look for what possible, but not probable explanations we can make up.
That's fine. We have to be pragmatic and can't go around worried about ghosts. But the point is that we have to be honest about the nature of "truth". It is provisional and only our best effort given our relationship with the universe.
And because we must admit that there is no such thing as 100% truth, we should be more humble than going around making pronouncements with such certainty as if we know more than we are actually even able to know.