Attempts are being made to solve the problem of waste disposal.

正在想办法解决废物处理的问题。

《牛津词典》

But although the disposal of waste and the proliferation of nuclear weapons are profoundly important issues, the most severe problem may be the high and unpredictable cost of nuclear plants.

不过，尽管核废料处理和核武器扩散这些问题都极其重要，核电站那高昂而又不可控的成本才是最严重的问题。

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The safe disposal of nuclear wastes is our current major problem.

核废料的安全处理是我们目前的一个主要问题。

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"These days, it's more of a waste disposal problem, " said Ms Exelby.

BBC: NEWS | UK | Wales | South East Wales | Expert help in whale stranding

The problem of waste disposal, which torments and troubles the municipalities and administrations of the major cities of the world, will vanish by overnight.

FORBES: Initiative Would Shutter California Nuclear Plants For Decades While Feds Ponder Waste

Despite rhetoric to the contrary, Obama pretty much has the same narrow range of tools at his disposal to fix the problem.

FORBES: Magazine Article