La Cara Be Donn Es Environnementales

A l'interface des continents nord et sud américains, la Caraïbe se caractérise par de grandes disparités sociétales et biologiques. A la pluralité des environnements physiques correspond une diversité floristique, faunistique, écosystémique et paysagère. Ressource primordiale pour les Amérindiens, les écosystèmes terrestres et marins sont aujourd'hui à l'intersection d'intérêts divers relevant de l'économique et du culturel ou encore de l'aménagement territorial. Les spécificités écologiques, qui sont fonction des différentes terres caribéennes, sont à la base d'usages nouveaux susceptibles de participer au développement économique, par exemple le tourisme. A cette histoire singulière, façonnée par l'action des hommes, s'ajoutent les incommodités naturelles telluriques et atmosphériques, dont les effets directs et indirects ont érigé certaines composantes de cette partie de la biosphère en terre à risques. Les nuisances de toutes sortes, inhérentes au fonctionnement de ces sociétés, sont des freins au développement maîtrisé ou soutenable. Pour l'essentiel, les économies relèvent des propriétés du mal-développement et peuvent entraîner, dans des cas extrêmes, un chaos politique et social. Les conséquences pour les milieux biophysiques sont souvent graves et s'apparentent à un écocide (Haïti par exemple). Le but premier de ce numéro de Terres d'Amérique est d'explorer les différentes facettes du fonctionnement des sociétés caribéennes ainsi que leurs dynamiques d'interface au regard des environnements physiques et biologiques.

These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.

The Evaluation of Toxicological Data for the Protection of Public Health: Proceedings of the International Colloquium, Luxembourg, December 1976 focuses on the review of toxicological tests and methods used in toxicological evaluation of chemicals and reconsideration of these procedures in identifying decision-making processes involved in the protection of public health. The selection first discusses reviews of toxicological tests, including introductory remarks and comments on acute toxicity; problems associated with the testing of environmental mutagens; and the testing of carcinogenic potentials. The publication also examines the uncertainties related to the evaluation of the health hazards of environmental chemicals from toxicological data and epidemiological monitoring of indices of chemical hazards. The book takes a look at safety factors and their application in toxicological evaluation; ecotoxicological approaches for the protection of environment and health; and use of biological materials as environmental pollution gauges. The text also discusses acute toxicity, teratogenic effects of pollutants, and examples of ecotoxicological research. The selection is a dependable source of data for readers interested in the evaluation of toxicological data relative to the protection of public health.

An annotated bibliography of research publications on fire hehaviour and ecology research at the Petawawa National Forestry Institute. Items are arranged alphabetically and author and subject indexes are included.

Science for Better Environment: Proceedings of the International Congress on the Human Environment (HESC) focuses on the applications of science in health, human settlements, and protection of the environment. The selection first offers information on the background of HESC, including human settlements and habitat, environment and development, natural disasters, and energy. The text then discusses human’s place in natural ecosystems, along with essential properties of ecosystem, auto-regulation in ecosystem, and collapse of symbiosis between human and nature. The compilation presents a summary of the environmental problems in Japan, including progress and outstanding issues in the environmental field. The water pollution from 1970 to 1975 and air pollution control in the country are underscored. The text also explains the development of antipollution laws in the country. Topics include local government antipollution laws, creation of antipollution laws, and clarifying the responsibility of industries in antipollution drives. The book also touches on the role of scientists in the task of achieving a better environment; challenges of stress on human health in urban ecosystems; and environmental problems on a global scale. The selection is a dependable reference for readers interested in the application of science for the improvement of the environment.