2 Conservation of Energy Create a Brochure promoting the Conservation of EnergyIn your Brochure you must persuade humans to protect/conserve Earth’s resourcesYour Brochure must include color, pictures, and loads of factsYou will have 3 days to complete the brochureYou may include pictures (small) from magazines or the internetYou will be graded on content of course and creativity
3 4.3 Water, Air, and Land Resources The Water PlanetWhat 3 things are essential for life?_________________How do we use fresh water?____________________________________
4 4.3 Water, Air, and Land Resources What percentage of Earth’s surface is water?_____%Of that, what is Salt water?____%Fresh water?Of the fresh water, what is useable?<____%
5 4.3 Water, Air, and Land Resources Freshwater PollutionPoint source pollution-_____________________Ex – factory pipesNonpoint source pollution-_________________Ex – waste oil from street, sediments from construction sites, pesticides from farm land and lawns, water filtering from coal minesRunoff-_________________________________How is Runoff related to Nonpoint source pollution?___________________________________
8 4.3 Water, Air, and Land Resources Earth’s Blanket of AirThe chemical composition of the atmosphere helps maintain life on Earth.________________________________________Pollution in the AirThe increase in CO₂ in the atmosphere has altered the carbon cycle and contributed to global warming- __________________________________________________The burning of fossil fuels releases sulfur dioxide and nitrogen oxide into the atmosphere. These compounds combine with water vapor to create ___________________________.Chlorofluorocarbons (CFCs) once used in air conditioners and foam production destroy ______________________________.
9 Major Primary Pollutants and Their Sources What makes up almost half of all air pollution?What fraction of pollution sources are industrial processes?What do you think is the source of most carbon monoxide pollution?
10 4.3 Water, Air, and Land Resources Earth’s land provides soil and forests, as well as mineral and energy resourcesSoil-________, Forest-_________, Petroleum-_________, Minerals-_______Damage to Land ResourcesMines produce many mineral resources, but mines are destroying______,_________, and _______________.Mines also cause soil erosion and pollution that contaminates soil and water and destroys ______________.
11 4.4 Protecting Resources Conservation ______________________Pollution prevention means stopping pollution from entering the environmentLate 1940s and 1970s, pollution got public’s attentionAir pollution- killed 100s, sickened 1000s in US & elsewhereWater pollution-oil spillsAmericans use about ______ of the world’s resources and produce about _______ of the garbage
12 4.4 Protecting Resources Keeping Water Clean and Safe Starting in the 1970’s, the federal government passed several laws to prevent or decrease pollution and protect resourcesIn 1972, the Clean Water Act (CWA) required _____________ ____________________________________________________The Safe Drinking Water Act of 1974 helped ______________ ____________________________________________________Led to an increased number of sewage treatment plants which decreased the discharge of raw sewage into lakes, rivers, and bays
13 4.4 Protecting Resources Protecting the Air In the 1970’s, Congress passed the Clean Air Act, the nation’s most important air pollution lawNational Ambient Air Quality Standards (NAAQS) established for six “criteria” pollutants known to cause health problems – carbon _________, ozone, lead, sulfur _________, nitrogen oxides and particulates (fine particles).
14 4.4 Protecting Resources Caring for Land Resources Protecting land resources involves preventing pollution and managing land resources wiselyCompost___________________________________________________Recycling
15 4.4 Protecting ResourcesSince 1977, sanitary landfills have largely replaced open dumps________________________________________________________________________________________________The Resource Conservation and Recovery Act (RCRA) of 1976 has decreased illegal and unsafe dumping of _______________________________The 1980 Comprehensive Environmental Response, Compensation, and Liability Act mandates the cleaning up of abandoned hazardous waste sites that are ______________________________________