โลกร้อนขึ้น 4 องศา รายได้หายเกือบครึ่ง?

Summary

The research estimates that around four degrees of warming could cut average incomes by roughly 40% — far more than earlier estimates suggested.

The damage is not evenly spread: tropical countries bear more, because they start hotter and depend more on agriculture and outdoor labour.

Thailand therefore sits among the countries that feel it earlier and harder than temperate ones.

The response has to be adaptation alongside emissions cuts, not one or the other, because some of the damage is already locked in.

Key points

1. 01

   The number is larger than previously believed

   Earlier models substantially understated the economic damage.

2. 02

   The tropics carry more of it

   The hotter the baseline, the sharper the productivity loss per additional degree.

3. 03

   It works through productivity, not just disasters

   Heat reduces output and work capacity daily, not only during extreme events.

4. 04

   Thailand is in the high-exposure group

   Both geography and economic structure mean it is hit sooner.

5. 05

   Adapt and cut emissions together

   The warming already arriving has to be managed; the rest has to be prevented.