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You would think, with all of the advancements in medicine, technology, and infrastructure, we'd be continuing to see improvements. Instead, it's ticking back up. Why do you think that is?
This is a ridiculous requirement to suggest. CO2 lasts around 100 years, waiting until your satisfied of "evidence of catastrophe" is like waiting for evidence that a car crash has fatalities before considering swerving.
The objections to climate change are transparently ideological. Admitting it is real is admitting certain ideologies are flawed, and people like you would rather deny reality than abandon their parasitic memes.
The first ~1.4C of warming coincided with the greatest surge in human development, poverty reduction, and technological progress in history. For most of it, we didn't even realize the climate was warming... To me, this suggests that economic development massively outweighed any negative impact that warming might have caused.
I don't object to climate change. I object to the idea that the current moderate warming is catastrophic. It's not an ideological position, other than placing a high value on human progress.
I'm also not saying we shouldn't do anything about it. I just don't think we should do anything about it that would significantly hamper economic development. Fossil fuels are on their way out anyways, in large part due to economic development and economic forces.
It may also be a case of borrowing from the future. It's kind of like blowing your yearly budget in a month, it'll be spectacular until the equally spectacular crash -- and if you're unclear what your budget is in the first place, you won't see it coming either.
I mean, it's not like we're sophisticated about it. We get a glut of energy, we burn the energy as fast as we can. This provides incredible benefits because energy is basically magic, but it's not a strategy. It never has been. We don't act the way we do because we know what we're doing, we act that way because it's compulsive. Anyone who compulsively drives at full throttle in a straight line without looking ahead is living in a perpetually shrinking sliver of probability that the road is infinitely straight. They are bound to crash eventually.