The Fury said:
This planet being our home isn't going to last if we mess it up yet we've got no where else to go.
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Can you define "mess it up?" Rapid climate change will affect a few things - as it has always done in the past: destroy ecosystems, make certain species extinct/endangered, allow other types of organisms to florish (mammals vs. dinosaurs, i.e) and affect the evolutionary progression of certain species.
But I can't think of any scenario that would mean the Earth will become uninhabital( or mostly uninhabital) for life (even human life) by increasing greenhouse gases at the current rate (and that is assuming they won't drop off with new technology, like say Nuclear Fusion), with the exception of the runaway greenhouse effect (which is probabalistically infinitessimal and requires unlikely boundary and initial conditions.)
So will the planet last? Of course. Does that necessarily mean there aren't ecological costs involved? No. But it is important to not overstate the issue and fearmonger, because then it distracts people from the real point at hand.
Will the world be the same as it is now? No, but as humans we've adapted and lived in much harsher climates. With our technology we can adapt to this, and probably preserve many species in the process as well.
Honestly, there are some more debalitating and necessarily solluble environmental concerns in my opinion, such as the deforestation of rain forests, and water pollution/scarcity which are more immediate threats to human life. Climate change has a role in these problems as well (oddly enough both positive and negative), but there are much more influential human activities involved than just that.