The end is nigh!

[The Dark Crystal]

The sun dissapearing does not = no more oxygen. Oxygen just happens to be a by-product of photosynthesis, I assure you it will exist here and elsewhere in the universe as it's rather plentiful. Life however will die off long before this stage. Ecosystems which we rely on for survival are going to be shattered by extreme temperature changes as the sun changes, technology simply will not overcome the difficulties presented by basically a dead planet.

Without the sun, photosynthesis will not occur! so i am sorry, but you are wrong! I am not saying their will not be oxygen after the sun is gone, but it will no longer be produced, thus we will RUN OUT! Like i said the sun is not going to die out for another 2 billion years so i think by that time we will be able to create our own form of energy for plants so yes technology can save us(look at what we have done the past 200 years). If you have any other comment please read everything before you type anything else, and possible do some research!