Is it morally wrong for us to ignore global warming?

There’s a fair consensus that global warming, or at least global climate change, is taking place and will continue to take place. However, there’s been a lot of disagreement about what should be done about it, or whether anything should be done about it at all.

One argument is that global warming poses a threat to human health, future generations and the environment, and that we should take precautionary measures to prevent it.

Another argument is that prevention is too expensive, or not worth it. We should accept that global warming is going to happen, and start adapting to it instead of trying to stop it.

Is it ethical for us not to take action against global warming? If not, why are we ethically obliged to do something about the problem?