Question

Is there a positive correlation between levels of Oxygen-18 in the ice and the temperature?

Answer 1

Well, I would you to read this article on Paleoclimatology explaining very deeply about the concept of Oxygen - 18 influence of climate factors on the ratio of oxygen isotopes.

http://earthobservatory.nasa.gov/Features/Paleoclimatology_OxygenBalance/

Answer 2

Thank you. ^_^ This was really helpful.

Answer 3

Great to know that it helped you @emcrazy14 - Good luck with your studies and yes, I read it too and it is really interesting! :)