Washington, Scientists have presented new data from their analysis of ice core samples and ocean deposits dating as far back as 90,000 years ago and have suggested that warming, carbon dioxide levels and ocean currents are tightly inter-related. These findings provide scientists with more data and insights into how these phenomena were connected in the past and may lead to a better understanding of future climate trends. With support from the National Science Foundation, Jinho Ahn and Edward Brook, both geoscientists at Oregon State University, analysed 390 ice core samples taken from Antarctic ice at Byrd Station. The samples offered a snap shot of the earth