what would happen if all the trees became dead would we still survive ?

Question: what would happen if all the trees became dead would we still survive ?
- Keywords:
  death,
  nature
Asked by lilyfisher123 to Laura on 19 Jun 2013.
- Laura Roberts Artal answered on 19 Jun 2013:
  
  I don’t think it would mean we would die, however, I so think that Earth as we know it now would not exist either. Large tropical rain forests drive weather systems over Africa and South America. There is already evidence that deforestation is one of the causes of severe draughts experienced in some areas of Africa. I think we would see more extreme weather across the globe and Earth just wouldn’t be such a nice place to live on.
  Plus, so many animals and insects would loose their homes 🙁 !
  
  It’s also worht thinking about the point Simon made about this to someone else!I think it would be quite a while, trees are not the only source of Oxygen on the planet, in fact almost 1/3 is produced by plankton in the oceans, increased Carbon dioxide levels would hopefully lead to increased plankton levels as well as other plants, which would go some way towards counteracting the loss of all the trees. (Simon gave that answer to someone else).

Question: what would happen if all the trees became dead would we still survive ?