Plant Physiological Responses to Elevated CO2, Temperature, Air Pollution, and UV-8 Radiation

• Main Authors: Allen, Leon Hartwell, Amthor, Jeffreys.
• Format: Book Part
• Language: unknown
• Published: Oxford University PressNew York, NY 1995
• Subjects: ice core
• Online Access: http://dx.doi.org/10.1093/oso/9780195086409.003.0004; https://academic.oup.com/book/chapter-pdf/52438418/isbn-9780195086409-book-part-4.pdf

Abstract Measurements of the CO2 and CH4 content of entrapped gas bubbles in the Vostok Core show a clear correspondence with deuterium content-derived temperatures (Lorius et al. 1990). It has not, however, been established whether changes in these two greenhouse gases have been the primary drivers of the global climatic cycles that have occurred over the last 160,000 years of ice core records. The Milankovich orbital variations of the earth appear to be primary factors in governing global climates (Lorius et al. 1990). Recent analyses of the effects of frequency variations of the orbital obliquity of the earth, superimposed on records of the eccentricity of its orbit, indicate that the frequency variations may induce climatic changes by modulating the seasonal distribution of solar radiation (Liu 1992).