An Introduction to Environmental Biophysics, Second Edition This book provides an introduction to the physical microenvironment in which living organisms reside and presents simplified discussions of heat and mass transfer models, applying them to exchange processes between organisms and their surroundings. The second edition incorporates knowledge gained from teaching the subject over the past 20 years, with revised material to reflect changes and trends in the science. The order of presentation has been changed, starting with the physical environment of living organisms (temperature, moisture, wind) and then considering the physics of heat and mass transport. Radiative transport is covered in two chapters rather than one, and remote sensing is included as an important topic. The final chapters apply previously described principles to animal and plant systems. The book is written for students with backgrounds in biological sciences where mathematical skills may be less developed. The approach starts with more descriptive topics and progresses to more mathematically demanding ones. Many example problems are included to help students develop skills in solving problems related to mass and energy exchange. A significant departure from the first edition is the use of molar units for mass concentrations, conductances, and fluxes. This is because molar units are fundamental, simplify equations, and are widely accepted in biological sciences. They also provide a coherent view of the connectedness of biological organisms and their environment. Another convention is the predominant use of conductance rather than resistance. Conductance is directly proportional to flux, aiding in the development of an intuitive understanding of transport processes. The use of surface area instead of "projected area" is also a change from the first edition, as it provides a more accurate way to characterize the area of nonflat objects. The book also uses "hemi-surface area" for canopies of flat leaves, which is one-half the surface area. The use of J/kg for water potential is consistent with the first edition, as it is more fundamental and preferred. Many people contributed to the book, including students, colleagues, and publishers. The book includes references and problems at the end of each chapter to help students develop skills and understanding. The book is intended to be a comprehensive resource for students and researchers in environmental biophysics.An Introduction to Environmental Biophysics, Second Edition This book provides an introduction to the physical microenvironment in which living organisms reside and presents simplified discussions of heat and mass transfer models, applying them to exchange processes between organisms and their surroundings. The second edition incorporates knowledge gained from teaching the subject over the past 20 years, with revised material to reflect changes and trends in the science. The order of presentation has been changed, starting with the physical environment of living organisms (temperature, moisture, wind) and then considering the physics of heat and mass transport. Radiative transport is covered in two chapters rather than one, and remote sensing is included as an important topic. The final chapters apply previously described principles to animal and plant systems. The book is written for students with backgrounds in biological sciences where mathematical skills may be less developed. The approach starts with more descriptive topics and progresses to more mathematically demanding ones. Many example problems are included to help students develop skills in solving problems related to mass and energy exchange. A significant departure from the first edition is the use of molar units for mass concentrations, conductances, and fluxes. This is because molar units are fundamental, simplify equations, and are widely accepted in biological sciences. They also provide a coherent view of the connectedness of biological organisms and their environment. Another convention is the predominant use of conductance rather than resistance. Conductance is directly proportional to flux, aiding in the development of an intuitive understanding of transport processes. The use of surface area instead of "projected area" is also a change from the first edition, as it provides a more accurate way to characterize the area of nonflat objects. The book also uses "hemi-surface area" for canopies of flat leaves, which is one-half the surface area. The use of J/kg for water potential is consistent with the first edition, as it is more fundamental and preferred. Many people contributed to the book, including students, colleagues, and publishers. The book includes references and problems at the end of each chapter to help students develop skills and understanding. The book is intended to be a comprehensive resource for students and researchers in environmental biophysics.