Why they are storing nuclear waste?

Answer 1

I suppose you mean in the US? Somebody has to store it, it won't go away, and it will have to be stored for centuries to come. Up to now it has all been stored on the power station sites, and at many of these the provided water storage ponds have been filled and dry stores have had to be provided for the older waste which is less active but still dangerous to life. The country needs a solution. One could envision each electricity company owning the plants to be responsible, but I think this would lead to unsatisfactory short cuts which might give trouble in years to come when these companies have disappeared. We have to think long term. The States could be responsible for each State's waste, but then there may not be suitable places for a store in all States that have nuclear plants. The best solution for the country would therefore be to have a national repository in the best place geologically for it, but then no State especially one which does not even have nuclear plants will want to take this task on. The proposed site at Yucca Mountain Nevada is now in doubt I believe. As an outsider, I would have thought the solution was for the Federal Govt to own some territory where they can do what is required, but this wasn't thought of when the country was being carved up into States, apart from Washington DC, and that is hardly suitable on grounds of population density apart from geology.

Answer 2

because this is making all nuclear gasses reach the ozone layer

Answer 3

Nuclear waste is stored according to international and local regulations to protect the public and the workers from nuclear radiation and/or radioactive pollution.