Global temperature trends can be inferred from changes in ________ and ________.
fossils; chemical isotopes found in sediments and glacial ice volcanic eruptions; isotope ratios in glacial ice fossils; hydrogen and oxygen isotopes found in sediments and glacial ice fossils; isotope ratios in glacial ice volcanic eruptions; fossils
Global temperature trends can be inferred from changes in fossils and hydrogen and oxygen isotopes found in sediments and glacial ice.