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For millennia there have been predictions about the end of the world. But between climate change, global pandemics, and the possibility of nuclear war, humankind faces an unprecedented number of existential threats today. Will any of these bring an end to life on Earth, or even to the existence of Earth itself? This volume explains and assesses some of the factors that scientists have identified as major threats to human life to give readers a clearer sense of the dangers they pose. It also, more optimistically, offers suggestions on ways that these threats can be eliminated or at least mitigated.

Plankton populations have lived in the oceans for hundreds of millions of years, performing essential functions within marine ecosystems. This book explores emerging and current topics in marine ecosystem plankton research, focusing on pelagic diversity, functioning, and productivity from a multidisciplinary structural and functional view. It also examines the context of environmental stressors and global Climate Change Research and Policy. The book represents a contribution from a team of researchers from several regions of the world with a common mission to enhance readers'understanding of current ocean science and marine biology while pointing towards future directions.

It is written in a lucid style with the most recent advances, and with theoretical discussions being supplemented with illustrations, and tables for easy understanding of the subject. In this book most of the relevant topics are covered adequately. The book is also supported with a comprehensive glossary and index in the end. This book is written for students in meteorology, ocean engineering, and oceanography.

'The book provides a comprehensive exploration of the taxonomy and ecology of marine algae, covering various aspects such as adaptability, diversity, allelopathic interactions, biochemical traits, morphology, phylogeny, and environmental impacts. The content integrates various scientific disciplines, including microbiology, biochemistry, molecular biology, ecology, and taxonomy, providing readers with a holistic understanding of marine algae from different perspectives. The book addresses the temporal dynamics of marine algae, considering growth phases, resting stages and the occurrence of specific algae during particular years, providing a dynamic perspective on the ecological processes. The book serves as a valuable resource for students and academics studying marine biology, algal ecology, and related fields, providing a broad spectrum of topics for learning and research.'

This textbook provides students with a more holistic, systems-based perspective of harmful algal blooms, or HABs and HAB toxins, while explaining details on occurrence, health effects, and treatment processes for the removal of HAB cells and toxins from drinking water. It includes significant content on basic concepts, and system design, and includes thought-provoking problems and questions to inspire further studying, making it suitable for senior undergraduate and graduate-level students. It also serves as a useful resource for professionals and academics in technical activities related to HABs and HAB toxins in drinking water.Features Provides answers to the complex problem of HABs and HAB toxins in drinking water, as well as an up-to-date review of the literature. Covers solutions to HABs and HAB toxins in drinking water in the context of a changing climate. Explains key concepts and terms, detailed analysis, and design examples, in an easy-to-understand language for students and professionals interested in HABs. Includes worked example problems and numerous questions to better illustrate the concepts and solutions to HABs and HAB toxins in drinking water. A “Solutions Manual” is provided. Offers comprehensive coverage of HABs and HAB toxins in drinking water, from occurrence to in situ treatment to treatment in treatment facilities. Features case studies from different countries that have proposed regulations for HABs and related toxins in drinking water. This is an excellent resource for use in courses that take an interdisciplinary approach to water treatment, such as environmental, marine, and atmospheric sciences. It can be used also for continuing education in water-treatment-related fields, and a reference for technical activities related to HABs and HAB toxins in drinking water.

The anatomy of water, water as a substance, water as a medium, the principles of the hydrologic cycle, the economics of water, and challenges are all covered in the first chapter of this book. The horizon of the tropical world, the environment, particularly the tropical environment, aquatic biome, tropical aquatic bionetwork, concept of biosphere, and tropical limnology are all covered in the second chapter. The third chapter covers the following topics: the origins of lakes, general lake classification, tropical lakes, lake morphometry, morpho-edaphic index, trophic status index of lakes, wetlands, and mangroves in tropical regions. The lotic environment is the main topic of the fourth chapter, which also covers the idea of stream order, the differences between rivers and streams, the river continuum, physical, chemical, and biological characteristics, and adaptations of fish found in hill streams. Chapter five covers the prokaryota, cyanobacteria, freshwater biota, and water-adapted organisms. The sixth chapter focuses on the algal communities Xanthophyceae, Euglenophyceae, Bacillariophyceae, Chrysophyceae, Phaeophyceae (brown algae), and Chlorophyceae. The seventh and last chapter covers the following topics: Protozoa, Porifera, Rotifera, Coelenterata, Annelida, Arthropoda, Crustacea, Aquatic Insects, Mollusca, Echinodermata, and Brachiopodaa.