Ọrụ ice nke Greenland
Greenland Ice Core Project (GRIP) bụ ọrụ nyocha nke Ndi European Science Foundation (ESF) haziri. Ọrụ ahụ malitere site na 1989 ruo 1995, na oge evwuregwu site na afo 1990 ruo afo 1992. N'afọ 1988, a nabatara ọrụ ahụ dịka mmemme ESF, n'oge ọkọchị nke afọ 1989, a malitere ọrụ ubi na Greenland.

GRIP bu n'uche ịnakọta ma nyochaa ice cores nke dị mita 3000 nke a gwuru n'elu ice nke Greenland, nke a makwaara dịka Summit Camp. akwukwo Greenland ice  nwere ihe karịrị 90% nke ice sheet na akwukwo ice ice n'èzí Antarctica. 

Kọmitii Na-eduzi nke Mahadum nke Bern's Physics Institute, nke Prọfesọ Bernhard Stauffer duziri, duziri ọrụ ahụ. Ego sitere na mba Europ asatọ (Belgium, Denmark, France, Germany, Iceland, Italy, Switzerland, na United Kingdom), na European Union. Nnyocha nke isotopes nuklia na ihe dị iche iche dị na ikuku nke isi nyere nyere ohere ka ndị otu ahụ wuo ihe ndekọ zuru ezu nke mgbanwe ihu igwe. Ihe ndekọ ahụ na-ekpuchi afọ puku nari gara aga.