This volume examines progress in the fields of life and earth sciences. It opens with a historical overview and goes on to describe the evolution of PPST authority and the evolution of PPST into a growing arsenal of interwoven diagnostic principles, tools, and techniques. - Historical Perspective - The Photoacoustic Effect in Photosynthesis - Time-Resolved Photothermal Studies with Biological Supramolecular Systems - Applications in Plant Physiology, Entomology and Microbiology; Gas Exchange Measurements Based upon Spectral Selectivity - Applications of Photoacoustic and Photothermal Non-Contact Methods in Selected Areas of Environmental and Agricultural Sciences - Applications of Photothermal Calorimetry in Agriculture, Medicine and Environmental Sciences - Pulsed Laser Resonant Photoacoustics/Applications to Trace Gas Analysis - Detection of Pollutants in Liquids and Gases - Photoacoustic Spectroscopy of Atmospheric Techniques, Results and Applications - Optoacoustics of Oceans - Pulsed Photothermal Radiometry of Inhomogeneous Tissue - Detection of Pollutants in Liquids and Gases - Photoacoustic Spectroscopy of Atmospheric Techniques, Results and Applications - Optoacoustics of Oceans - Pulsed Photothermal Radiometry of Inhomogenous Tissue - Author Biographies and Photographs - Acknowledgments - Index