IntroductionIT IS A WELL-KNOWN FACT THAT HUMANS HAVE BEEN LIVING AND MODIFYING THEEARTH SINCE THE BEGINNING OF TIMEWE CONSCIOUSLY AND SUBCONSCIOUSLY DESTROY OUR PRECIOUS ENVIRONMENT WITHTHE INTENT OF MAKING LIFE EASIER AND ALSO GENERATING ECONOMICAL BENEFITS. THE FUTURE OF THE EARTH REMAIN UNCERTAIN DUE TO THE DAMAGING IMPACT THATARISE FROM INDIVIDUALS QUEST FOR FULFILLMENT, ECONOMIC ADVANCEMENT AND ALACK OF RESPECT FOR THE ENVIRONMENT.YET TO ALL ALARMING SITUATIONS ,SUCH AS GLOBAL WARMING , UNTIMELY CHANGE OFTHE SEASON,OZONE DEPLEITON ,EXTICTION OF MANY SPECIES AND MANY MORE .WEHUMAN’S STILL ENJOY OUR DOMINATION OVER THE PLANET AND EXPLOIT THINGSACCORDING TO OUR NEEDIF THIS CONTINUES ITS EXPECTED ,WE WILL BE PACKING UP WITH OUR NATURAL NON-RENEWABLE SOURCES OF ENERGY ,NO SUFFICIENT LAND EVEN TO GENRATE RENEWABLEENERGIES ,TEMPRATURE OF THE EARTH WILL RISE TO 5 TO 8 DEGREES,ONLY THE SPECIESLEFT WOULD BE INSECTS AND HUMANS ,GLACIERS WOULD MELT COVERING HALF THEPRESENT LAND WITH WATER
Impact of human on environment with their respective Era’s of Evolution . Human evolution with time Change in human’s activity with timeHumans were mostly hunter gatherers Hunting & food gathering Agriculture revolution Settlement and agriculture development, domestication of animal, habitat development (urbanization) Industrial revolution Development of industrial process, mining and fossil fuel production , increase the use of pesticide and chemical fertilizer .Scientific advancements & Globalization Rapid technology and information development, globalization on many aspects
Agriculture revolution• SETTLED AGRICULTURE HAS INCREASED FOOD SUPPLY THAT LEAD TO SUPPORT MORE PEOPLE, BUT DECREASE THE ENVIRONMENT QUALITY• PEOPLES CUT DOWN VAST FOREST TO SUPPLY WOOD FOR FUEL AND BUILDING MATERIAL THUS LEADING TO SOIL EROSION• PLOWED UP LARGE EXPANSES OF GRASSLAND TO GROW CROP TURNING FERTILE LAND TO DESERT
Effect of modern agriculture on the air, soil, water & biodiversity resources Water pollution SOIL Air pollution Aquifer deplition Erosion Green house gas emission from Increased runoff & flooding form Loss of fertility Fossil fuel use land cleared to grow crops Stalinization Other air pollutants from fossil Sediment pollution from erosion Lateralization fuel use Fish kills from pesticide runoff Water logging Pollution from pesticide sprays Desertification Loss and degradation of habitat from clearing grasslands & forests Fish kills from pesticide runoff Human health Killing of wild predators to protect livestock Nitrates in drinking Water Loss of genetic diversity from Pesticides residues in food, air replacing thousands of wild crop & water strains with a few monoculture Contamination through livestock Biodiversity loss strains waste Bacterial contamination of meat
Raising livestock to produce meat & animal products by open grazing is destroying ecosystems LIGHTLY GRAZED OVER GRAZED DUST STORM IN DELHI SORRY NOTHING TO FEED
Industrial revolution • SHIFT FROM RENEWABLE ENERGY SOURCES TO NON-RENEWABLE ENERGIES ( FOSSIL FUELS). PRODUCTION NOW TOTALLY DEPEND UPON AVAIBILITY OF THESE ENERGY RESOURCES. • TO MEET THE CHANGE MAN STARTED UPROOTING THESE RESOURCES BACKWARDING SUSTAINIBILITY OF ENVIORMENT• APETITE & GREED FOR THESE RESOURCES SUDDENLY INCREASED AS HUMAN CIVILIZATION MARCHED TOWARDS URBANIZATION AND SO DO WE STARTED TO EXPLOIT• WITH USE OF THESE NATURAL ENERGY RESOURCES , WE ACHIVED MANY ADVANCEMENTS WITH TECHNELOGIES BUT AGAIN SIDELINNING THE BY-PRODUCT , “POLLUTION”
Effects of extracting, processing and using of mineral / fossil fuels STEP Environmental effect Disturbed land: mining Mining accident ,health hazards, mine exploration & extraction waste dumping, oil spills & blowouts noise ugliness, heat Solid waste: radioactive Processing material air, water& soil Transportation, purification, pollution, noise, safety & manufacturing health hazards, ugliness, heat. Uses Noise: ugliness thermal water Transportation, pollution, pollution of air, water transmission to individual & soil, soil & radioactive waste: uses eventual use & safety &health hazards, heat discarding
Effects of human activity on biodiversity Habitat Excessive loss POPULATIONresource use Over fishing Habitat degradation Climate Basic causes change • Population growth Introducing • Rising resources use nonnative • No environmental species accounting pollution • poverty Commercial hunting& Predator poaching & pest Sale of exotic Land control pet& decorative degradation plant
Consequences of excessive use of fossil fuels on environment & the animals Surface and subsurface mining cause pollution and degradation of stream and groundwater by runoff of acidsBurning fossil fuels produces billionstones of CO2, one of greenhouse gasesthat contribute global warming. A large amount Liquid fossil fuels can seeps into ocean Waste oil dumped from activities on land Thus this oil leakage into oceans causes a sudden collapse in marine ecosystem
Activity Today the depth in which we had intervene the earth’s natural cycle ,is to a extent that most of the activity carried by us causes direct or indirect harm to the environment Even just a construction of road could lead in destruction & degradation of land & the ecosystemUse of pesticides for controlling pest populationIts not only disbalances the natural cycle of insect& their predators but also leads to soil infertility.Further these insecticide travel up in the foodchain
ACTIVITYIrreversible damage is being caused to soil due to various human activities mainly due toAgriculture and industrializationToday , though we understand the effect of which we had exploited the earth , still we arelanding towards the more worst conditions . Soil Degradation Areas of degraded soil of the world
Overloading of waste in water to causing water degradationOnly a tiny amount of world’s abundant water is available as fresh water (2.6%)Rate at which water is being used is much faster then at which its replenished itself.
Our future sustainabilityCLIMATE CHANGE WILL HAVE A SIGNIFICANT IMPACT ON THE SUSTAINABILITY OF WATERSUPPLIES IN THE COMING DECADES. A NEW ANALYSIS, PERFORMED BY CONSULTINGFIRM TETRA TECH FOR THE NATURAL RESOURCES DEFENSE COUNCIL (NRDC), EXAMINEDTHE EFFECTS OF GLOBAL WARMING ON WATER SUPPLY AND DEMAND IN THECONTIGUOUS UNITED STATES. THE STUDY FOUND THAT MORE THAN 1,100 COUNTIES --ONE-THIRD OF ALL COUNTIES IN THE LOWER 35 -- WILL FACE HIGHER RISKS OF WATERSHORTAGES BY MID-CENTURY AS THE RESULT OF GLOBAL WARMING. MORE THAN 400OF THESE COUNTIES WILL FACE EXTREMELY HIGH RISKS OF WATER SHORTAGES
Climatic change : Again due to human activitiesToday our planet is hotter to 2 degree Celsius as compared to what was in the start ofindustrial revolution.It doesnt sound like much, but relatively small fluctuations like that can have asignificant impact over a wide surface. A 5 degree to 8 degree rise in global temperaturein the next 50 years, expected by many scientists, could cause sea levels to rise half ameter and put some island nations underwaterTough a concrete jungle are providing a good habitat for human’s ,but it bifurcates theLaw of natural cycle .
Man –vs - AnimalsHUMAN’S AGAIN DOMINATED THE EARTH WITH THEIR ABILITY AND SKILLS INMANIPULATING & MODIFYING THE EARTH’S NATURAL SYSTEMHUMAN’S STARTED TO HUNT AND DOMESTICATE ANIMALS SO AS REQUIREDANIMALS DOMESTICATED ,NOW COULD NOT SURVIVE WITHOUT HUMAN INTERFEARENCEDUE TO EXCESSIVE HUNTING MANY ANIMAL SPECIES HAD EXTINCT OR ON A VERGE OFEXTINCTION LIFE WITHOUT HUMAN’S - IMPOSSIBLE
SCIENTIFIC ADVANCEMENT’ S & GLOBALISATIONCREATING AND INTRODUCING NEW TECHNOLOGIES MUCH FASTER THAN WE CANEVALUATE THEIR IMPACTSPRESENT IT SECTOR DEVELOPMENT ARE CAUSING CONFUSION, DISTRACTION ANDSENSE OF HOPELESSNESS AS RAPIDLY GROWING ENVIRONMENTAL INFORMATIONINCREASE ENVIRONMENTAL DEGRADATION AND DECREASE CULTURAL DIVERSITY AS AGLOBALIZED ECONOMY SPREADS OVER MOST OF THE EARTHTHOUGH RAPID DEVELOPMENT & URBANIZATION IS THE CAUSE OF ALL THE PRESENTSCENARIO OF ENVIRONMENTAL UPSET, IT IS ONLY THE CAUSE THAT PEOPLE AREUNDERSTANDING AND EXCHANGING THEIR THAUGHTS FOR SAVING THE ENVIRONMENT