Analysis of the layering and chemical composition of the cores has provided a revolutionary new record of climate change in the Northern Hemisphere going back about 100,000 years and illustrated that the world's weather and temperature have often shifted rapidly from one seemingly stable state to another, with worldwide consequences.
A análise da composición química das capas destes núcleos provocou un novo e sorprendente rexistro acerca do cambio de clima no hemisferio norte producido ao redor de hai 100.000 anos, e puido demostrar que o clima e a temperatura do planeta, con frecuencia, cambiaron rapidamente desde un estado aparentemente estable a outro, con consecuencias mundiais.