Wealthy nations historically emitted the most carbon that caused climate change, so they bear responsibility for the consequences—including displacement. When rising seas and desertification destroy people's homes through no fault of their own, turning them away is morally indefensible. These countries have the infrastructure, resources, and capacity to resettle climate refugees, making refusal a choice, not an impossibility.
Accepting large numbers of refugees strains housing, jobs, and social services that citizens already struggle to access, and creates political backlash that actually hardens attitudes against immigration. The real solution is climate mitigation and helping vulnerable regions adapt in-place, not mass resettlement that's logistically chaotic and sets an unsustainable precedent. Developed nations can do far more good investing in local resilience than opening unlimited borders.