you are likely referencing a report that concluded the costs for stopping climate change were higher than the costs of dealing with the consequences. The report

you are likely referencing a report that concluded the costs for stopping climate change were higher than the costs of dealing with the consequences. The report that I read on that topic came to its conclusions by valuing people's lives in dollar figures and putting those lives at less value for anyone in developing countries. So, yeh, if you think poor climate refuges have no value then you are right we should take no action. The problem is that those holding onto power have politicized climate change so that those not paying close enough attention wrongly conclude that we don't need to take action.