ecological footprints Casper, Julie Kerr. text New York Facts on File c2009 ind ENG xvii, 198 p. : ill., maps ; 25 cm. Presents an overview of significant climatic periods of the Earth's past and introduces the concept of climate proxies, or natural indicators that can be used to infer past climate. Dewasa Julie Kerr Casper. Global warming Paleoclimatology Pemanasan Global 551.6 BPAD DKI 9781438126081 JKPUDKI 20111118134809.0 JAKPU~11110000001348 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)