Reuters: Vast floating islands of rubbish and debris, accumulated after torrential rains and flooding, are threatening to topple a bridge and jam two big dams in China, state media reported on Wednesday. One layer of garbage covering 15,000 square meters — more than 150,000 square feet – had lodged under a bridge in the northeastern city of Baishan in Jilin province and was blocking water flow, the China Daily reported. Officials fear a fresh wave of flooding, if crews fail to clear …