„Ştim, în mare, ce a făcut nivelul mării începând cu acum 20.000 de ani. Dar până acum nu am avut o evidenţă detaliată a ceea ce s-a întâmplat în ultimii 2000 de ani cu nivelul mării”, susţine Miller.
Nucleul demonstrează că nivelul mărilor din situl Carolinei de Nord a fost în mare parte neschimbat începând cu 100 î.Hr şi până în 950 d.Hr. Apoi nivelul apelor a suferit o creştere de patru secole, cu o medie de 0.6 milimetri pe an, potrivit descopera.ro.
După care nivelul mărilor a rămas constant până după 1865. De atunci, s-a observat o creştere de 2.1 milimetri anual. Cel puţin ultimii 80 de ani se potrivesc cu datele studiului, sustine Horton.
Rezultatele validează utilizarea ecuaţiilor generale cu privire la temperaturile trecute şi la modificările nivelului mării care prevăd creşterea nivelului apelor în urma încălzirii climei, susţine Aslak Grinsted de la Centrul de Climatologie şi Gheaţă din cadrul Universităţii din Copenhaga.
„Ceea ce este minunat referitor la acest ansamblu de date este continuitatea şi precizia sa, cât şi faptul că coincide cu datele înregistrate în celalte părţi ale planetei”, susţine Grinsted.
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