Suchergebnisse

11.4. Chemical Weathering11.5. Erosion; 11.6. Mass Wasting; 11.7. Fluvial Processes; 11.8. Aeolian Erosion (Wind); 11.9. Glacial Processes; 12.0. Formation of Geological and Hydrological Structures; 12.1. Landforms; 12.2. Water Erosion and Deposition; 12.3. Wind Erosion and Deposition; 12.4. Coasts and Estuaries; 12.5. Ocean Gyres and Currents; 12.6. Glacial-Interglacial Cycles; 13.0. Components of the Environment; 13.1. Lithosphere; 13.2. Hydrosphere; 14.0. Components of the Atmosphere; 14.1. The Evolution and Composition of the Atmosphere; 14.2. The Structure of the Atmosphere

"Environmental science focuses on understanding challenges that affect our lives, and on finding solutions to those challenges. Your decision to study environmental science is an important step. This field can help you find answers to some of the most important problems facing us today. Environmental science is an integrative field. It draws on diverse knowledge bases and skills to address issues: For example, preserving healthy ecosystems depends on strategies such as reducing greenhouse gas emissions, developing renewable energy systems, reducing pollution, improving social and environmental justice, improving sustainable farming systems, and reducing resource consumption"--

Part 1Ecological SystemsSystems and EcosystemsThe Concept of SystemConcept and Use of ModelsSystem State and StabilityThe Ecosystem as a SystemMathematical Models of EcosystemsOrganisms and Environmental FactorsCategories of OrganismsChemical Composition of the CellMetabolism-EnzymesStorage of EnergyPhotosynthesis-Respiration-ChemosynthesisLimiting NutrientInteraction of Organisms and EnvironmentOrganisation at Population LevelPopulation and EcosystemPopulation DynamicsPopulation Size Variation ModelsInteractions between Two PopulationsNatural Selection and EvolutionSurvival Strategies of Popu.

Uses the area of soil erosion to shed light on what is seen as the emotionalism, exaggeration, & "ideological viciousness" characterizing environmental science & examine the different standards of evidence required for pessimistic & optimistic perspectives on environmental issues. In addition, the scientific objectivity of prominent, but perhaps extreme, players in the field & the implications of their actions are considered. Adapted from the source document.