IT IS A WELL-KNOWN FACT THAT HUMANS HAVE BEEN LIVING AND MODIFYING THE EARTH SINCE THE BEGINNING OF TIME

WE CONSCIOUSLY AND SUBCONSCIOUSLY DESTROY OUR PRECIOUS ENVIRONMENT WITH THE INTENT OF MAKING LIFE EASIER AND ALSO GENERATING ECONOMICAL BENEFITS.

THE FUTURE OF THE EARTH REMAIN UNCERTAIN DUE TO THE DAMAGING IMPACT THAT ARISE FROM INDIVIDUALS QUEST FOR FULFILLMENT, ECONOMIC ADVANCEMENT AND A LACK OF RESPECT FOR THE ENVIRONMENT.

YET TO ALL ALARMING SITUATIONS ,SUCH AS GLOBAL WARMING , UNTIMELY CHANGE OF THE SEASON,OZONE DEPLEITON ,EXTICTION OF MANY SPECIES AND MANY MORE .WE HUMAN’S STILL ENJOY OUR DOMINATION OVER THE PLANET AND EXPLOIT THINGS ACCORDING TO OUR NEED

IF THIS CONTINUES ITS EXPECTED ,WE WILL BE PACKING UP WITH OUR NATURAL NON-RENEWABLE SOURCES OF ENERGY ,NO SUFFICIENT LAND EVEN TO GENRATE RENEWABLE ENERGIES ,TEMPRATURE OF THE EARTH WILL RISE TO 5 TO 8 DEGREES,ONLY THE SPECIES LEFT WOULD BE INSECTS AND HUMANS ,GLACIERS WOULD MELT COVERING HALF THE PRESENT LAND WITH WATER

Introduction

Impact of human on environment with their respective Era’s of Evolution .

Human evolution with time Change in human’s activity with time

Humans were mostly hunter gatherers Hunting & foodgathering

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 informationdevelopment, 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

Loss and degradation of habitat from clearing grasslands & forests Fish kills from pesticide runoff Killing of wild predators to protect livestock Loss of genetic diversity from replacing thousands of wild crop strains with a few monoculture strains

Erosion Loss of fertility Stalinization Lateralization Water logging Desertification

Green house gas emission from Fossil fuel use Other air pollutants from fossil fuel use Pollution from pesticide sprays

Biodiversity loss

SOIL Air pollution Aquifer deplition Increased runoff & flooding form land cleared to grow crops Sediment pollution from erosion Fish kills from pesticide runoff

Nitrates in drinking Water Pesticides residues in food, air & water Contamination through livestock waste Bacterial contamination of meat

Water pollution

Human health

LIGHTLY GRAZED

OVER GRAZED

Raising livestock to produce meat & animal products by open grazing is destroying ecosystems

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”

Mining exploration & extraction

Effects of extracting, processing and using of mineral / fossil fuels

Disturbed land: mining accident ,health hazards, mine

waste dumping, oil spills & blowouts noise ugliness, heat

Solid waste: radioactive material air, water& soil pollution, noise, safety &

health hazards, ugliness, heat.

Processing Transportation, purification,

manufacturing

Uses Transportation,

transmission to individual uses eventual use &

discarding

Noise: ugliness thermal water pollution, pollution of air, water & soil, soil & radioactive waste:

safety &health hazards, heat

STEP Environmental effect

Basic causes• Population growth• Rising resources use• No environmental accounting• poverty

Over fishing Habitat

degradation

Introducing nonnative

species

Commercial hunting& poaching

Sale of exotic pet& decorative

plant

Predator & pest control

pollution

Climate change

Habitat loss

Effects of human activity on biodiversity

POPULATIONExcessive resource use

Land degradation

Consequences of excessive use of fossil fuels on environment & the animals

Surface and subsurface mining causepollution and degradation of stream and groundwater by runoff of acids

Burning fossil fuels produces billions tones of CO2, one of greenhouse gases that 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

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 ecosystem

Activity

Use of pesticides for controlling pest population

Its not only disbalances the natural cycle of insect & their predators but also leads to soil infertility.Further these insecticide travel up in the food chain

Areas of degraded soil of the worldSoil Degradation

ACTIVITY

Irreversible damage is being caused to soil due to various human activities mainly due to Agriculture and industrialization

Today , though we understand the effect of which we had exploited the earth , still we are landing towards the more worst conditions .

Overloading of waste in water to causing water degradation

Only 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.

CLIMATE CHANGE WILL HAVE A SIGNIFICANT IMPACT ON THE SUSTAINABILITY OF WATER SUPPLIES IN THE COMING DECADES. A NEW ANALYSIS, PERFORMED BY CONSULTING FIRM TETRA TECH FOR THE NATURAL RESOURCES DEFENSE COUNCIL (NRDC), EXAMINED THE EFFECTS OF GLOBAL WARMING ON WATER SUPPLY AND DEMAND IN THE CONTIGUOUS 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 WATER SHORTAGES BY MID-CENTURY AS THE RESULT OF GLOBAL WARMING. MORE THAN 400 OF THESE COUNTIES WILL FACE EXTREMELY HIGH RISKS OF WATER SHORTAGES

Our future sustainability

Climatic change : Again due to human activities

Today our planet is hotter to 2 degree Celsius as compared to what was in the start of industrial revolution.

It doesn't sound like much, but relatively small fluctuations like that can have a significant impact over a wide surface. A 5 degree to 8 degree rise in global temperature in the next 50 years, expected by many scientists, could cause sea levels to rise half a meter and put some island nations underwater

Tough a concrete jungle are providing a good habitat for human’s ,but it bifurcates the Law of natural cycle .

Man –vs - Animals

HUMAN’S AGAIN DOMINATED THE EARTH WITH THEIR ABILITY AND SKILLS IN MANIPULATING & MODIFYING THE EARTH’S NATURAL SYSTEM

HUMAN’S STARTED TO HUNT AND DOMESTICATE ANIMALS SO AS REQUIRED

ANIMALS DOMESTICATED ,NOW COULD NOT SURVIVE WITHOUT HUMAN INTERFEARENCE

DUE TO EXCESSIVE HUNTING MANY ANIMAL SPECIES HAD EXTINCT OR ON A VERGE OF EXTINCTION

LIFE WITHOUT HUMAN’S - IMPOSSIBLE

SCIENTIFIC ADVANCEMENT’ S & GLOBALISATION

THOUGH RAPID DEVELOPMENT & URBANIZATION IS THE CAUSE OF ALL THE PRESENT SCENARIO OF ENVIRONMENTAL UPSET, IT IS ONLY THE CAUSE THAT PEOPLE ARE UNDERSTANDING AND EXCHANGING THEIR THAUGHTS FOR SAVING THE ENVIRONMENT

CREATING AND INTRODUCING NEW TECHNOLOGIES MUCH FASTER THAN WE CAN EVALUATE THEIR IMPACTS

PRESENT IT SECTOR DEVELOPMENT ARE CAUSING CONFUSION, DISTRACTION AND SENSE OF HOPELESSNESS AS RAPIDLY GROWING ENVIRONMENTAL INFORMATION

INCREASE ENVIRONMENTAL DEGRADATION AND DECREASE CULTURAL DIVERSITY AS A GLOBALIZED ECONOMY SPREADS OVER MOST OF THE EARTH

THANKING YOU