What is nuclear winter? – Germanium Zone

Question: What is nuclear winter?
- Keywords:
  nuclear,
  nuclear winter,
  season
Asked by spongebob48 to Cathal, Daphne, Darren, Jon, Katherine on 13 Mar 2012.
- Katherine Haxton answered on 13 Mar 2012:
  
  nuclear winter is what would happen if we had nuclear war and lots of dust was blasted into the atmosphere blocking out the sunlight. It would be cold and dark, crops wouldn’t grow so the survivors would be hungry, and very unpleasant.

Question: What is nuclear winter?