> but it's not going to help a subsistence farmer in Vietnam who finds their rice fields no longer grow enough to live from.
But what if those farmers switch from rice to some other subsistence crop better adapted to the new conditions?
But what if those farmers switch from rice to some other subsistence crop better adapted to the new conditions?
Point is: It would lead to lower crop yields, at a higher cost.
That's doesn't mean instant death for all humans on the face of the earth. But it's still something we want to avoid.
Acting to prevent climate change is a cost saving measure.