Generate text that refutes this claim: Underground Nuclear Storage is Expensive.  Underground nuclear storage is expensive. This is because the deep geological repositories needed to deal with such waste are difficult to construct. This is because said repositories need to be 300m underground and also need failsafe systems so that they can be sealed off should there be a leak. For smaller countries, implementing this idea is almost completely impossible.  Further, the maintenance of the facilities also requires a lot of long term investment as the structural integrity of the facilities must consistently be monitored and maintained so that if there is a leak, the relevant authorities can be informed quickly and efficiently.  This is seen with the Yucca mountain waste repository site which has cost billions of dollars since the 1990s and was eventually halted due to public fears about nuclear safety. [1]  [1] ISN Security Watch. “Europe’s Nuclear Waste Storage Problems.” Oilprice.com 01/06/2010
energy house would store nuclear waste underground
The economic costs of underground storage are high. However, given that nuclear power is necessary to avoid what would likely be a very significant amount of economic harm, specifically from global warming. For example, it has been projected that not doing anything to address climate change would result in an overall increase in temperate of 5 degrees Celsius which would lead to economic costs in the order of $74 trillion. This means that the need for nuclear waste storage is inevitable. [1]  As such, whilst underground storage does cost more than alternate options, it is as mentioned within the proposition case the safest and most reliable method of nuclear waste storage. As such, proposition is willing to take the harm of extra cost in order to prevent harm to people’s health and well being.  [1] Ackerman, Frank. Stanton, Elizabeth. “Climate Change –the Costs of Inaction.” Friend of the Earth. 11/10/2006