SUSTAINABLE DEVELOPMENT

4. the three “R”s that offer a guide to helping you lessen your impact on the environment and create a more sustainable world
5. An international treaty giving countries a timeline to reduce their emissions of greenhouse gases. It has not been signed by the United States.
10. The most abundant energy source capable of being harnessed by humans.
13. A tool used to illustrate how much impact a human being has on the Earth.
15. The type of fuel humans depend on most. It is nonrenewable and found underground.
17. the name given to gasses that trap heat and cause global warming.
18. the term given to food sold in supermarkets and grown or fed without synthetic fertilizers, chemicals, hormones, and antibiotics.
19. The most efficient form of transportation in terms of energy usage. It does not pollute.
20. Energy that can be used and reused an infinite number of times.
22. Another name for buyers. They can influence what products are carried in stores

1. the most abundant element in the universe. It can be used as a fuel source.
2. one of the factors that causes global warming, desertification, and loss of topsoil. It is often a result of poor management of natural resources
3. these plentiful and useful organisms consume carbon dioxide, convert it to food, and produce oxygen.EarthDay It was started in 1970 by Senator Gaylord Nelson and Dennis Hayes. It is celebrated by over 500 million people around the globe on April 22 every year.
6. living within the limits of earth’s natural resources
7. The cleanest fossil fuel, most often found in fragile areas of nature.
8. the most toxic greenhouse gas emission. It is common around landfills and farms.
9. A very important name associated with sustainable development
11. Another word for development
12. it gives people the power to make environmental policy a priority – age 18.
14. The most common greenhouse gas. Humans breathe it out and trees consume it
16. The part of the earth’s atmosphere that repels the sun’s ultraviolet rays
21. An interdependent community of organisms including plants, animals, water, air and the ground.