alt Hacker NewsQuestion is, is this human-caused change or the usual natural climate shift that Earth goes through every few thousand centuries or millennia? And is there anything humans should do about it, other than adapting to it?
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People who hold this viewpoint interest me because you always seem to display a certain confidence that because the changing climate is "just part of a natural cycle" it's going to be fine. Not all changes on earth have been "just fine" and quite the contrary.
Look at a chart and you will see just how quickly the climate is changing and how we've done almost nothing to improve the situation, then why do you think it's "ok" because its "natural"? Are you nor alarmed about the mysterious force making the earth hotter? Isn't that alarming to you that we're just going along with a hotter and hotter planet? At what stage does this natural cycle stop?
Clearly, thanks to science, we know it's because of human activity, and I guess you could argue that is "natural", like our behavior is part of nature, but to pretend it's just some unknown warming force that's making the climate change seems much more disturbing to me than actually know why it's happening and addressing the issue?
Have you seen literally any chart covering just the past one to two hundred years, or even just the past 50-70 years that covers emissions, population, industrial scale, environmental destruction, weather patterns, etc.? They would answer your question.
There is no end to the concrete evidence of the negative effect of humans towards the climate.
Here's something simple. Deforestation is directly caused by humans. (Note that wildfires "deforest" but without human intervention, they grow back and thus reforest.). So then ask yourself, what is the role of forests and jungles within the environment and climate?
Look at this article: https://ourworldindata.org/deforestation. What began 10,000 years ago, 200 years ago, and 100 years ago? This couldn't possibly be major changes in human activity could it?
The human impact is unquestionable. Is it part of a bigger cycle? maybe, but I feel like people use that as a cope to not do anything. "it doesn't exist", "it exist but it's not bad", "it's bad but it's not our fault", &c.
This isn't actually the question though, and have you done any research yourself or are you Just Asking Questions [1]?
tl;dr we have extensive historical records of past weather progression through e.g. ice cores and the recent weather and climate changes are unheard of outside of cataclysmic events like meteor strikes or volcano eruptions, with a very close correlation with emissions. See e.g. https://en.wikipedia.org/wiki/Temperature_record_of_the_last....
As for whether we can do anything about it, personally I don't think so, we passed the point of no return... probably decades ago, even if emissions suddenly stopped then, the wheels were set in motion, for example through the melting of permafrost causing ???? amounts of sequestered plant matter to start decomposing and releasing methane and the like.