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Human influence on environment Kaunas mechanical school


Humans are using up the earth’s resources, including fossil fuels.


Burning fossil fuels in cars and power stations produces carbon dioxide, sulphur dioxide and other greenhouse gases -carbon dioxide traps heat in the atmosphere and causes the temperature of the earth to rise. -This leads to disruption of the weather patterns eg drought, floods -Some weeds may thrive on the extra carbon dioxide while other plants are killed


Sulphur dioxide will dissolve in rain producing Acid Rain

Acid rain damages trees and pollutes rivers and lakes.


Pesticides

Pesticides kill insects that will damage crops They also kill harmless insects or can get washed into rivers and pollute the water They may even end up in the food chain


What can we Do?


It Is Easy Being Green Saving Energy at Home


Make Small Changes to Cut Energy

Install low-flow faucets ad shower heads  Cut water consumption

in half

 Appliances count for 20 percent of electric bill  Buy ENERGY STAR qualified products  Run dishwater, clothes washer with full loads  Wash clothes in cold water


Use Energy Efficient Lighting


Adjust Your Thermostats

 Furnace: 68 degrees degrees 

Water Heater: 120


Be Green Save Energy at Home


Interesting and Useful Facts about Waste


WASTE  84 percent of all household waste can be recycled;  14 billion pounds (about 455 grams) of trash is dumped into ocean every year;  5 billion of aluminum cans are used each year


Waste

ď‚› It takes 90% less energy to recycle aluminum cans than to make new ones; ď‚›

every ton of paper that is recycled saves 17 trees


Waste

ď‚› Most Families throw away about 88 pounds (about 455 grams) of plastic every year; ď‚› We each use about 12 thousand gallons (4,55 liters) of water every year.


How long does it take some things to break down?  Plastic breaks down in 500 years;  cotton, rags, paper breaks down in 6 months;  aluminum cans break down in 500 years;  organic materials break down in 6 months.


We hope you will think about it.

LET’S START RECYCLING NOW!!!


Fun facts about WATER Do we need to save it?


 Water is the only substance found naturally in three forms: solid, liquid, and gas.  People need about 2.5 quarts (1 quart = 946 milliliters) of water a day to maintain a good health.  Water has no sugar or caffeine.


•About 70% of an adult’s body is made up of water. •A healthy person can drink about three gallons (48 cups) of water per day.


•Eighty percent of the earth’s surface is water.  The total amount of water on the earth is about 326 million cubic miles of water.  97 percent of earth’s water is saltwater in oceans and seas. Of the 3% that is freshwater, only 1% is available for drinking – the remaining 2% is frozen in the polar ice caps.


•A person can live without water for approximately one week. 

Water freezes at 32 degrees Fahrenheit or at 0 degrees Celsius.

 Water boils at 212 degrees Fahrenheit or 100 degrees Celsius.


About 74% of home water usage is in the bathroom, about 21% is for laundry and cleaning, and about 5% is in the kitchen.

 Flushing the toilet actually takes up the largest amount of this water.  About 2 gallons of water are used to brush our teeth.


START SAVING WATER


ď‚›Small things that we do every day might have great influence on our environment. ď‚›We should start loving everything that surrounds us.

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Human influence on environment

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