Categories:

There are a total of 9 categories at this level:

Air (0) Air Pollution, Air Pollution Effects, Air Quality, Indoor Air Pollution Energy (9) Alternative Fuels, Clean Fuels, Energy Conservation, Energy Efficiency, Fuel Economy, Geothermal Energy, Hydropower, Renewable Energy, Solar Energy, Wind Power Global Warming (10) Simplicity (4) Simple Living, Simplifying Your Life Water (0) Drinking Water, Ground Water, Water Pollution, Wastewater

Ecopsychology/Ecological Spirituality (4) Exploring our profound interconnection to the Earth. Environmental Justice (0) Fair treatment for people of all races, cultures, and incomes, regarding the development of environmental laws, regulations, and policies. Nature and the Environment (3) Sustainability (3) Resources and projects that are ecologically sound, economically viable, socially just and humane.