Stefansson (forthcoming) argues that by emitting and offsetting, we fail to fulfil our justice-based duty to avoid harm owed to specific individuals. In this paper, I explore a case where offsetting fails to prevent some but not all risks of harms that our emissions impose on them. By drawing on a distinction between general and specific duties not to (risk) harm, I argue that if by emitting and offsetting, we satisfy some (if not all) of our specific duties we owe others, then this gives us stronger moral reasons to offset than give to charities that do good more effectively.</p