That’s a tough but important choice.
I would choose a world with no pollution.
Here’s why:
While natural disasters are devastating, they are often sporadic and localized. Pollution, on the other hand, is a constant, global threat that affects everyone daily — from the air we breathe to the water we drink and the food we eat. By eliminating pollution, we could prevent millions of premature deaths each year, protect ecosystems long-term, and greatly improve quality of life worldwide.
A world without natural disasters would offer safety from sudden catastrophes, but a world without pollution would mean a healthier, more sustainable everyday existence for all living things.

Great points and very valid, Kelvin! Thank you so much for your comment and for your participation!