Sustainability Is a Very Relevant Concept and a Very Important Skill Essay Example

which people and companies who do not care for the earth would be held socially and financially responsible. In six parts, this article will re-examine our place in the environmental movement and investigate exactly what changes we can make in our personal lives to bring about positive change.

These areas are transportation, energy, recycling and waste management, toxins and pollution, food, and water. Some of the changes discussed will require sacrifice.

But, more important, these changes will often simplify our lives, bring our families and communities closer together, and help us to better understand, revere, and coexist with the world upon which each of us is directly dependent. Transportation The invention of the automobile is one of history's greatest environmental disasters. The automobile decentralized our society. People with cars moved out of the city and drove to work from their suburban homes.

Before the automobile, agriculture was local. Food was grown by farmers living in what was soon to be the suburbs, and delivered fresh to markets in the cities. Because of the short distance food had to travel, farmers didn't need to add preservatives or other additives to maintain freshness. Clearly, the automobile, like other harmful inventions, makes our lives easier in many ways, but how often do we consider the environment when weighing these benefits? Fossil fuels account for the automobile's most significant effect on the environment. Not only are the emissions from cars and trucks toxic to every air-breathing organism, but every step of the fossil fuel process, from extraction to disposal, is bad for the environment.

According to the U.S. Environmental Protection Agency (EPA), millions of gallons of untreated water contaminated by the

drilling processes are dumped into waterways and oceans annually. Once extracted, fossil fuels are frequently refined on site, burying 179 million tons of toxic waste annually. During transport, an average of 1 million gallons of oil is spilled into the ocean each month.

Upon arrival, fossil fuels are usually burned in automobiles or power plants. The average coal-burning power plant burns about 10,000 tons of coal in a single day. With even a low estimate of five per cent waste, that leaves 500 tons of toxic waste produced each day by a single power plant. If used in cars, oil must be refined further, wasting more energy and creating more toxic waste before drivers purchase it.

The combustion engines used in cars and trucks emit toxic gases that contribute to the greenhouse effect and acid rain, deplete the ozone layer, and create more than 50% of the smog producing toxins that city-dwellers breathe every day. Even if we disregard the environmental damage caused by fossil fuels, we should recognize that, as a non-renewable energy source, the earth's reserves will eventually run out.

Hundreds of millions of years of organic decomposition will be wiped out in a single century. Conservative estimates say we have 30 to 50 years left of oil use. With more and more developing nations rapidly increasing their use of fossil fuels, and the continuing growth rate of fossil fuel use at four times the population growth, our time with fossil fuels could be significantly less. Just imagine the economic and political upheaval a major oil shortage would cause. Simply put, the country that depends on fossil fuels the least will be the most

likely to survive the economic strife and wars resulting from global depletion.

Fossil fuel consumption is deeply entrenched in the American mode of life. We rely on automobiles for almost all of our transportation needs, enjoy motor boats and jet skis on our vacations, and use gas-burning engines in most of the tools we use in the yard. (Although electricity is another major consumer source of fossil fuel consumption, that will be discussed in the Energy section.) Yet we can make numerous changes in our lifestyle that will significantly decrease our personal consumption of fossil fuels. Let's return to America's biggest weakness: the automobile. Simply not driving is the best and most obvious solution to the problem of automobiles.

Americans have gotten used to their cars and seldom walk or bicycle even short distances. Gym class became a federal requirement in the 1930s because students were being driven or riding busses to school instead of walking. Americans have also become significantly more overweight since we started driving. Consider your Saturday errands around town. Most errands we make are to destinations less than a few miles away and frequently involve dropping off or picking up something small.

These kinds of errands can just as easily be accomplished by walking or bicycling. Your body will thank you, and so will the environment. Public transport, if available, is also a great way to stay out of the car. Consider an area's public transportation system in choosing a place to live, as some cities have significantly better systems than others.

When your destination is too far to walk or bicycle, there are still numerous ways to minimize the use of automobiles. If you

drive to work, find other people at your company or other companies near you that live in your town and start a carpool. Even carpooling once in a while makes a difference, so don't get discouraged by occasional scheduling conflicts or other obstacles. When running errands, plan ahead to consolidate them into one trip and consider the most efficient route. If possible, park in a central location and walk to multiple destinations.

Ask a neighbor or friend if they need to go out (everybody has to go to the grocery store, for example), and share a ride. For every ride you share, the fuel consumption and emissions for that trip are cut in half. There are also many ways that your driving habits effect the fuel efficiency of your car. Try to avoid fast accelerations, for instance. They use significantly more fuel than gradual accelerations. Likewise, avoid driving at excessive speeds.

Every car engine has an RPM (revolutions per minute) at which optimal fuel economy is achieved; you'll find it in your car's manual. Check your tachometer and try to maintain that RPM while driving. Minimizing the work-load on your car is another way to increase fuel economy. Remove any unnecessary heavy objects from the car, and avoid using the air conditioner when possible. Finally, turn off your engine if you expect to be idle for even a short while. Starting a modern fuel-injected car uses less gas than idling for 30 seconds.

Did you know that warming up your car by letting it idle in the driveway in cold weather actually causes engine damage? This is also when your car's emissions are at their worst. The best

and fastest way to heat up a car is by driving it. When it's time to buy a new car, there are many ecological alternatives to the gas guzzling beasts typically driven by Americans. Many compact cars on the market today achieve stunning fuel economy.

The four-wheel-drive trucks so popular in today's market get comparatively bad gas mileage and usually carry one person over a paved road. Buy the smallest car you can, and don't buy a larger car for infrequent needsconsider buying a used trailer for infrequent cargo hauls. If you've been putting off the purchase of a motorcycle as whimsical, think again. Many motorcycles (and scooters in particular) achieve significantly better fuel economy compared to even the most fuel-efficient cars, resulting in less over-all consumption and emissions.

Maintenance is the final step in minimizing the environmental impact of automobiles. Modern cars have very sophisticated emissions systems and engines that must be finely tuned to achieve maximum efficiency. Regular check-ups for your car will protect your investment and ensure the car is in its best possible working order. The longer you keep your car, the more value from it you receive and the less waste is created and energy spent in the production of a new car.

If you have to commute to work every day, consider an electric car. Electric cars have come a long way in price, distance and efficiency, and will soon be available from large manufacturers like Ford and Toyota. Several small companies around the country convert small gas powered cars and trucks to electric, zero-emissions vehicles and sell them for slightly more than a gas-powered car. As electric

cars become more common and are manufactured on a large scale, their prices will drop significantly. Many hobbyists, with no prior automotive or electrical expertise, have created their own electric cars from their used gas-powered vehicles. Check your local library for one of the many conversion guides available.

Today's electric cars take about four hours to charge, plugged into a standard outlet, and can go anywhere from 50 to 200 miles on a single charge. While you wouldn't want to take an electric car across the country (though this has been done), their distance per charge is plenty for a typical commuter to get to work and back. Most electric car owners keep a gas-powered car around for longer trips. Owners of electric cars generally find the increase in their electric bill minimal compared to the amount they save in gasoline.

While electric cars create no emissions themselves, and create almost no waste (even the batteries are recyclable), the electric company is still burning fossil fuels to create the electricity needed to charge the car. Nevertheless, electric companies are capable of converting fossil fuels to energy much more efficiently and with fewer emissions than a gas-powered car. Electric cars also leave room for improvement in any method of large-scale energy production, such as biomass, hydro, and solar (see the Energy section). This section has focused primarily on cars, but Americans also use many other gas-powered engines.

The small engines in motor boats and lawn equipment do not have to meet the emissions standards of cars, and thus, emit far more toxins into the air. Consider using a quiet, powerless mulching mower on your lawn if you

have one, and an electric weed whacker rather than one that is gas powered. If you enjoy the water, consider learning to sail rather than motoring. Motorized water vehicles not only emit air pollution, they also pollute the water, contribute to sound pollution, and injure fish and other animals in the water. Energy in the Home Automobiles are not the only consumers of fossil fuels or sources of air pollution stemming from our personal lives. According to the EPA, furnaces, hot water heaters, and other fossil fuel burning appliances in American homes produce 20% of all U.S. carbon dioxide, 26% of sulfur dioxide, and 15% of nitrogen oxide emissions, the leading causes of acid rain and global warming.

Note that these figures do not take into consideration the power our homes draw from fossil fuel-burning power plants. By making our homes as energy-efficient as possible and minimizing our personal use of electricity, we can significantly reduce our personal impact on the environment. The main sources of power consumption in our homes are the heating, ventilation, and air conditioning (HVAC) systems. Maintaining, repairing, or upgrading these systems will not only save us money, but also reduce the amount of energy needed to run our homes on a day-to-day basis.

The EPA's Energy Star Homes program brings environmentally aware developers and manufacturers together to build homes that are better insulated and utilize 90% efficiency or better HVAC systems. If you are looking to build a new home, call their toll-free hotline, (888) STAR-YES, for literature, or save paper and visit their Internet site at www.epa.gov for more information. Unfortunately, building new homes is not an environmentally sound

thing to do. New homes require previously undeveloped land or disposal of the property's old construction.

Further, new wood and materials must be used unless costly measures are taken to restore materials from an old construction. Beyond environmentally unsound, new construction is many times more expensive and time-consuming than renovation and repair of most existing houses. Even if your house is too costly to upgrade, consider buying an already renovated house or one easily renovated before building new construction. A furnace using heating oil, natural gas, or electricity heats most American homes. Still others use a wood or pellet stove.

Of these, electricity is by far the least efficient. One truth of energy conservation is that electricity should not be used to produce heat, whether in a stove, water heater, or central heating. The exception to this is the microwave, which is the most efficient way to heat small amounts of food. Edward Harland's book, ECORENOVATION: the ecological home improvement guide, an excellent resource for anyone interested in environmental renovations, provides this revealing chart: Fuel Kg of CO2 Emitted per Useful Kilowatt Delivered (approx.) Gas 0.27 Oil 0.35 Coal 0.40 Electricity 0.83 As you can see, electricity is more than twice as polluting as a coal burning furnace. Electricity is even worse if you take into consideration the amount of energy created by nuclear power, which creates nuclear waste instead of carbon dioxide (CO2).

There is also a significant amount of energy wasted in cooling power plants and lost in the power grid, which further degrades electricity's viability as an environmentally sound energy source. As the chart shows, natural gas, or methane, is the cleanest burning

fuel. While most of the natural gas used in America is drawn from non-renewable reserves, it can be produced renewably through biomass production, a method currently used by China. Methane is produced in massive quantities by decaying waste and agricultural operations, so much that methane is one of the most serious greenhouse gasses. If methane could be captured from these sources, we would be slowing the greenhouse effect and using clean-burning renewable fuel at the same time.

For these reasons, if you have an aging or inefficient oil burning furnace, consider converting to an efficient natural gas furnace. Wood or pellet stoves still fuel many homes in America. Wood, if used wisely, is a renewable and relatively clean-burning fuel. While burning wood does produce CO and CO2, new technology allows wood stoves to reuse unspent output by re-burning it before emission. Pellet stoves, quickly replacing log-burning stoves, use pressed recycled paper and wood pulp that look like rabbit pellets. Pellets, while more expensive, are more efficient to burn and take up less space during storage.

Before investing in a wood stove, however, be sure to investigate which brands are most efficient and emit the least gases and particulate. Also, wood stoves must be used carefully and maintained properly to avoid inefficient operation, excessive emissions, and leakage of carbon monoxide into the home.

The best way to minimize the amount of fuel-produced heat your home requires is to insulate it properly. Insulation is the most important factor in the amount of energy required to heat your home. Consider a hypothetical home with 100% perfect insulation.

This home would need to be heated only once, and never

again. This puts into perspective the idea that we only need to heat our homes as much as heat escapes to the outside. Most houses in America are poorly insulated at best; only one in four houses have insulated walls. Consider the fuel savings if you increased your home's insulation quality by even 20%, which in many cases is a realistic goal.

Initially, insulation costs time and money, but it pays for itself quickly in reduced fuel costs and a warmer, more comfortable home. Unfortunately, the finer points of insulating a home are beyond the scope of this article. An excellent resource on maximizing your home's insulation is Home Insulation by Harry Yost. Your local library should have, if not this book, several books on insulation that will at least get you started.

Beyond updating your furnace and insulating your home, consider your personal use of heat in the home. The average American household's temperature during the winter is slowly rising because of increasingly sedentary lifestyles and lighter dress.

The healthier we eat and the more exercise we get, the more internal heat our bodies will produce. The more above the outside temperature a home is heated, the less efficient its heating system becomes. If we simply wear more clothes, we will need substantially less heat. Wearing sweaters and slippers, eating nutritious food, and getting plenty of exercise are simple but frequently overlooked ways we can reduce our heating energy needs. Next to furnaces and stoves, the air conditioner is the second most energy-hungry appliance in American homes. Unfortunately, air conditioners rely on lots of electricity, the most polluting form of energy available.

The use of air

conditioners should be avoided at all costs. If you live in a climate with extreme heat, consider your air conditioner and its placement carefully.

The EPA has outlined efficiency standards for most household appliances, air conditioners included. Make sure, if you buy an air conditioner, that it has the EPA's Energy Star mark of approval.

This does not mean that the air conditioner is good for the environment, but that it uses its electricity efficiently instead of wasting it as many older models do. If you must have an air conditioner, purchase a small, efficient model and place it in a small, closed-off room where you spend most of your time. Make sure this room does not contain any heat-producing appliances like a washing machine or clothes dryer, and that sunlight does not enter through windows. Under these conditions, air conditioning can be relatively efficient and economical. Central air conditioning, on the other hand, is extremely inefficient and usually goes largely unused.

Outside of heating and air conditioning, almost all of the energy used in our homes is electricity. Many Americans take electricity for granted, leaving unused lights and appliances on without thinking. A simple awareness in turning things off can greatly reduce our electric bills. Further, choices can be made in the kinds of lights and appliances we use, and whether they need to be used at all. As for lights, there are several high-efficiency bulbs on the market that, for slightly more money than a typical light bulb, can get by on a fraction of the electricity.

Fluorescent lights, for instance, are five times more efficient than incandescent (typical) lights. Standard incandescent light bulbs use

electricity to heat a filament that glows to create light, whereas fluorescent lights send very rapid and brief charges of electricity through a filament. The days of flickering long tube fluorescent lights are over.

According to Edward Harland, new Compact Fluorescent Lights (CFLs) flicker at more than 20,000 cycles per second (compared to 60 in tube lights), are 30% more energy efficient than tube lights, and come on almost instantly. These lights, while more expensive, will significantly reduce your electricity bill and last five to ten times longer than standard light bulbs. Before even turning on the lights, make the best possible use of natural light in your home. Place your reading chair by a sunny window instead of in a corner facing out a window. Consider adding skylights to your home.

These can create a surprising amount of natural light during the day, and contribute to your house's heat during the winter. Mirrors strategically placed on walls can also make better use of light and heat from the sun coming in through the windows. Use only what electric lighting is necessary: low-wattage task lights for individual applications instead of high power lights to illuminate a large area. If you must use outdoor lights, consider purchasing a motion detector that will turn the light on and off only when it senses movement.

When purchasing appliances, check to see that they are EPA Energy Star approved. These appliances use energy more efficiently than others. Most refrigerators, for instance, have compressors at their base which produce significant heat and cause the refrigerator to work against itself. During fair weather, consider drying clothes on a line outside

instead of using a dryer, which inefficiently uses electricity to heat cold wet clothes. Your clothes will last longer, and you'll see the difference in your electric bill.

When undressing at night, ask yourself whether your pants can be worn again before washing. Americans, in particular, tend to balk at this sort of a suggestion. Allowing ourselves to think logically beyond social qualms and customs will allow each of our personal environmental movements to transcend many of our unsustainable habits. If you work in an office or at home, chances are your clothes aren't that dirty at the end of the day.

You'll be surprised at the decrease in your weekly laundry load. The last big source of energy consumption in our homes is our favorite appliance of all. The average American household television is on 7 hours and 20 minutes per day, and 98% of all households have at least one television. At 170 watts per hour, that comes to 452,965 watt hours (or 453 kilowatt hours) of television use per year in an average household using one 25 television. Look at the breakdown of your electricity bill to put this number into perspective. You'll see that America could save a lot of electricity and money by simply turning off the television.

Instead, we can read a book, go for a walk or hike, work in a garden, or talk or play a game with our families. Quite simply, the less television we watch, the richer our lives will be, the less we will spend on electricity, and the more we will be doing for the environment.

All of the information in this section

has focussed on minimizing the use of energy in the home. Imagine if you could use electricity in your home without burning any fossil fuels and without any monthly electric bills.

This is not only possible, but a reality for thousands of Americans. With one initial investment in a photovoltaic system (silicon cells that convert the sun's light into electricity), you can end your dependence on polluting power companies and begin a new life of clean energy self-sufficiency. You can get started with a simple photovoltaic setup for a single zone of your home for less than one thousand dollars, or go all out with a top-of-the-line fully self-sufficient photovoltaic power center for about $13,000. If these prices sound high, consider the savings. If your monthly electric bill is $100, a top-of-the-line system that requires only a moderate degree of energy efficiency would be paid for in less than eleven years.

And there is a whole spectrum of cheaper systems that can easily power a typical home. For less than four thousand dollars (paying for itself in about 3 years) the Real Goods Trading Corporation sells a system designed to handle all the lighting, entertainment, and small kitchen appliances for a modest, energy-conserving household of one to four people in a full-time home. This description is taken from the Real Goods Solar Living Source Book, 9th Edition. This seven hundred page tome covers everything from taking care of the land to water conservation and every alternative form of energy from solar to hydro to wind. It is a must-have for anyone who wants to live lightly on the earth, and is available at most major

book stores and libraries. Recycling and Waste Management There is no environmentally sound method of dealing with the 200 million tons of municipal solid waste produced in America each year.

There are many things we can do, however, to minimize, if not eliminate, our personal 4 1/2lb-a-day contribution to that figure. The now ubiquitous threesome, Reduce, Reuse, and Recycle, still defines what we all must do to bring our personal trash production down to a sustainable level. With the media and certain high-positioned nay-sayers claiming that recycling is worse for the environment than it is good for it, and laws making recycling just another stupid rule rather than a social imperative, perhaps a redux of America's trash situation is called for. Households and other residences produce 100 of the 200 million tons of annually produced garbage in the United States. Most of that goes to land-fills, where it is covered up (if not purposefully sealed to prevent leakage) and starved of the oxygen needed for biodegradation.

Here is just a taste of some garbage statistics from Geoffrey C. Saign's well-researched book, Green Essentials: More than 1/2 of U.S. landfills have closed in the past 10 years, and nearly 1/2 of the remaining 5,800 landfills do not meet federal or state standards for human health and environmental protection.

More landfills are being closed as they fail to meet 1993 and 1994 guidelines and as communities resist allowing new landfills in their area; 22 states will run out of landfill capacity within 10 years or less. The nation's 10 largest cities use a land area for their garbage that is larger than the state of Indiana.

And this is just landfills. Incineration is quickly becoming the chosen method of dealing with garbage. Incineration actually concentrates the toxicity of garbage by mixing volatile chemicals at high temperatures and reducing its harmless biomass content.

Approximately 1/4 of the ashes produced in a typical incinerator escape into the atmosphere, where they combine with the toxic gases emitted to cause acid rain, smog, and global warming. The remaining ashes are highly toxic and dumped in landfills or stored in toxic waste facilities. A few states mix this ash with pavement, where it will slowly decompose and leach into the ground.

The simple fact is that most of this waste could be recycled or composted instead of burned or buried. Green Essentials offers this breakdown of garbage ingredients by weight: Ingredient % by weight Alternative disposal methods available Paper and paperboard 34% Recyclable Yard trimmings 20% Compostable Plastic 9% Recyclable Food waste 9% Compostable Metals 8% Recyclable Glass 7% Recyclable Wood 4% Compostable, can be used as fuel Rubber and leather 3% Recyclable (tires) Textiles 2% Donate Other 4% ??? As this chart displays, 58% (not counting the 3% for rubber and leather) of our garbage is recyclable; 33% of the remainder could be composted.

That means that 91% of all the garbage produced in this country (that's about 182 million tons annually) could be kept out of incinerators and landfills. Even a fraction of this ideal estimate would have a profound impact on the environment.

Despite the amazing potential for waste reduction that recycling makes possible, The New York Times joined the media's misinformed recycling myth extravaganza in their June 30th, 1996 article, Recycling is

Garbage. From the beginning, pessimists and special-interest industries have spread incorrect myths about recycling. These claims frequently charge (among other things) that landfill space is abundant and cheap; there is no market for recycled goods; and recycling doesn't pay for itself. Consider the facts on these three points: Landfill space has become a precious commodity in the U. S., with many states paying to export trash to other states or countries. Recall Geoffrey Saign's statement that 22 states will run out of landfill capacity within 10 years or less.

The market for recycled goods, while fluctuating like any burgeoning market, has increased with the amount of recycled goods available to create a powerful new industry. According to the Environmental Defense Fund, U.S. pulp paper manufacturers have voluntarily built or expanded more than 45 recycled paper mills in the 1990's, and are projected to spend more than $10 billion on such facilities by the end of the decade. To argue that recycling doesn't pay for itself is like arguing that landfills and incinerators don't pay for themselvesof course they don't.

Recycling plants, even in the industry's infancy, cost about as much to operate as conventional disposal methods, but are considerably more environmentally sound (costing less when environmental damage and cleanup costs are considered) and reduce pollution from manufacturing and mining for new production. Recycling is an easy thing to do, and good habit to get into as many towns and cities are requiring their citizens to recycle by law or charging by the pound for non-recycled garbage.

First, find out what your town recycles by calling your local waste management facility. If your

town or city doesn't recycle or recycles only a few materials, consider getting a recycling-only dump permit for a near-by pro-recycling town or city. Next, reorganize your home's main trash area to include receptacles for all the different materials you will recycle. Food containers like tin cans and bottles should be rinsed to keep your recycling receptacles from smelling. You'll be amazed at the decrease in waste the next time you take out the trash. If we make a commitment to recycle our garbage, we must support the effort on the other end by buying recycled goods.

Many products' packaging claims 100% recyclable. This is good, but keep in mind that it doesn't mean the material is recycled. Look for the percentage of post-consumer waste to tell you if it is and how much of is recycled. Recycled products like paper and cardboard have come a long way in quality and price.

Seventh Generation, a producer of a full line of 100% recycled and earth-friendly household products, posts a convincing advertisement on the side of their bathroom tissue packages: If every household in the U.S. replaced just one 4-pack of 430 sheet virgin fiber bathroom tissues with 100% recycled ones, we could save 1 million trees, 4.1 million cubic feet of landfill space (equal to 4,618 full garbage trucks), and 427 million gallons of water (a years supply for 12,300 families of four). About 33% of the garbage we produce, like food scraps and yard trimmings, can be composted.

Composting is nature's answer to garbage control, converting organic waste back into the soil it came from. While many people compost to create nutrient-rich soil for their

garden, you don't have to be a gardener to compost your organic waste.

You should cover your compost pile, but not suffocate it. The organic waste needs plenty of oxygen to feed the microbes that decompose the matter. You can build a box for your compost, or buy one pre-made at your local garden shop. Look for an organic gardening book at your library for instructions on building a composting container.

While recycling and composting can help many of our waste management problems, the Reduce and Reuse methods are still more environmentally sound. Recycling does take energy and cost money, and material quality (especially plastic) typically degrades each time it is recycled. Avoiding garbage altogether is the best answer to our waste management problems. This means reducing our personal consumption levels and changing some of our buying habits.

When shopping, choose products that use the least packaging, and buy products whose packaging is wholly recyclable. Packaging makes up approximately 30% of all U.S. garbage. Many grocery stores now carry a significant amount of food in bulk, allowing consumers to reuse durable containers for food rather than disposable cardboard or plastic containers.

An easy way to change wasteful habits is to put a note by your home's garbage and recycling center. Every time you throw something away, ask yourself if it could have been replaced by something reusable like a sturdy container or cloth rag. You'll soon find yourself collecting and using reusable items for many common tasks that once required disposable materials. You can also extend your garbage-awareness to your work place.

Advocate for a double-sided printer, for instance, if you work in an

office. A convincing letter to your boss (if you're not the boss) might convince him or her that the amount of money saved in paper will eventually pay for the printer. When you go to the grocery store, bring your own bags instead of using paper or plastic. Consumers often wonder which of the two is better; the answer is: neither. When shopping for smaller items, tell the clerk not to give you a bag (frequently their default action) if you can simply carry the item in your hand. Buy durable, quality items that will last and lend themselves to repair when broken.

When things do break, remember that fixing is almost always cheaper than replacing, and you'll have the satisfaction of minimizing your garbage output. When you no longer need something, give it away instead of throwing it away. Organizations like The Salvation Army will gladly accept almost any used household item. Remember that Benjamin Franklin's maxim, A penny saved is a penny earned, goes for the environment, too. Every time we reuse something, we've saved another like it from having to be made. Every time we recycle something, we've saved energy, pollution, and the materials from being mined from our natural