What effect would a limited, regional nuclear war have on the world's ecosystem and atmosphere?

Question

There are various places in the world where there is some danger of a nuclear war erupting. The middle east, and Pakistan/India are examples of such places where a regional nuclear war could happen.

If such a scenario were to play out, and we saw nuclear exchange between just a couple of countries, would effects still be seen on a global scale?

How would the whole Earth be effected by a small scale or limited nuclear war?

Answer 1

It depends largely on the number and types of bombs, how they are deployed, and the regional geography. So the answer is really that we don't know. Let's hope we never find out.

Answer 2

Effects of a regional nuclear war on the world's ecosystem and atmosphere.

Obviously it depends on the number of strikes.

If it is only one, the effects may be minimal, because after all many nations have tested nuclear (fusion) bombs in open air before.

If there are, say, 20 to 30 strikes then the effects may be different: the radioactive cloud may spread around the planet and contaminate food, plants and animals around the world.

An enormous burst of heat in a short period of time (1 or 2 days) may warm up the temperature of the atmosphere. But after two or three months, the effect will be gone.