To ensure that the scientific community continues to make valuable contributions to the NOAA Paleoclimatology Program's Slide Sets and Image Galleries, we ask that you not use these slides for any commercial purposes. Commercial use violates the trust we have built up within the scientific community, and will seriously damage our ability to provide future materials that improve the quality of scientific education. Copies of NOAA Paleoclimatology Slide Sets can be ordered from the NOAA Paleoclimatology Program. Click on individual images to view them at full size or for downloading. Photo by Jerry Wellington.
Scientists take samples from the center of the coral.
Scientists carefully extract core sections, and then label and box them for safe shipment. Photo by Peter Brown. Diagram of rings in a young conifer. From Fritts, H.C. 1976. Tree Rings and Climate .