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News Wales > Environment > Global warming threat to South American tourism Site: "Leading Welsh and English scientists fear that one of South America�s leading natural tourist destinations, the San Rafael Glacier in Patagonian Chile, which is renowned for the spectacular way in which it releases icebergs into the San Rafael Laguna, may soon retreat to a point where it no longer reaches the sea. This, they warn, might remove one of the main reasons why thousands of tourists travel to this remote corner of Chile every year."