Looking to pursue a career in environmental science, or want to know more about the principles and practices of ecology in conservation? Alison's free courses on ecology, environmental science, sustainable development and sustainable business will help you learn more about building a sustainable existence on this planet. Environmental science is the field of science that studies physical, chemical and biological aspects of the environment and determines solutions to environmental problems. Alison's courses in environmental science will help you gain a thorough knowledge and understanding of topics such as understanding the earth's processes, evaluating alternative energy systems, pollution control and mitigation, natural resource management, the importance of global water supplies, the effects of climate change, population and community ecology, biodiversity and sustainability. Sustainable development is a type of economic growth pattern where the use of resources meets the needs of the human population while conserving the environment at the same time. Alison's courses in sustainable development and sustainable business practices will be of great interest to all learners interested in international development, global sustainable development, and how current and future demands for the earth's resources by a growing human population can be met.