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"el efecto principal del derretimiento del permafrost – es el hundimiento.
but all that could change if permanently frozen layer below the seasonal thaw way surface starts to melt too. "russian railways" is the operator for more than five thousand kilometers of railways in permafrost regions, they say, is already familiar with the problem, and regularly fight with settling the railroad tracks. "the main effect of the melting of the permafrost - is subsidence.
accidente producido por inundación debida a derretimiento de nieve (evento)
accident caused by flood from melting snow (event)
aunquelasituaciónsearealmentealarmante,comoapuntanlasúltimasinvestigaciones, el derretimiento de losglaciares es una realidad desde las últimastres décadas.
regardless of whether or not the situation is really as dire as this latest researchsuggests, the melting of glaciers has beena reality for the past three decades.