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IMPACT OF HUMAN ACTIVITIES ON ENVIRONMENTAL QUALITY 1

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Page 1: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

IMPACT OF HUMAN ACTIVITIES ON ENVIRONMENTAL QUALITY

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Page 2: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

● Since Homo sapiens live on the planet of earth c.a.180,000 years ago,

human activities have been increased that cause great impacts to environment

Page 3: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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Page 4: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Major human cultural changes and its impact to environment

Human Cultural changes

Major human activities

Humans were mostly hunter gatherers

HuntingFood gathering

Agricultural revolution Settlement and agriculture development,

domestication of animal, city development (urbanization)

Industrial revolution Development of industrial process, mining and

fossil fuel production , increase the use of pesticide and chemical fertilizer,

Page 5: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Information and globalization revolution

Rapid technology and information development, globalization on many aspects

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Page 6: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Agricultural revolution Settled Agriculture

● Nomadic hunting and food gatheringSettled agriculture (animal domestication and plants cultivation)

● Settled agriculture has increased food supply that led to support more people, but decrease the environment quality

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Page 7: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Human activities for settled agriculture and its impact to environmental

● Peoples Cut down vast forest to supply wood for fuel and building material€ soil erosion

● Plowed up large expanses of grassland to grow crops turning fertile land to desert

● Built irrigation systems to transfer water from one place to another€ continous avaibility of water for plants

Such activities cause extensive land clearing which degraded the quality of ecosystems

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Page 8: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Modern agriculture has harmful impacts on air, soil, water, and biodiversity resources

Page 9: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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Page 10: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Raising livestock to produce meat by open grazing could destroyed ecosystems

Lightly grazed

Overgrazed7

Page 11: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

City development and urbanization● Urbanization: the formation of

villages, town, and cities. Some villages grew into towns and cities, which served as center for trade, government and business

● Towns and cities concentrated sewage and other wastes, polluted the air and water

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Page 13: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Industrial revolution● Represented shift from

dependence on renewable energy wood to non- renewable

fossil fuels (first coal, later oil and natural gas) this led to switch from handmade goods in small scale production to large scale machine-made goods in industries cities

Page 14: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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Page 15: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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

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Page 16: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Using fossil fuels can leak into the ocean ecosystems● a large amount Liquid fossil fuels can

seeps into ocean◦Tanker accidents◦Waste oil dumped from activities on land

Oil spill onto the ocean and kill a number of organisms

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Page 17: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Spill of oil fossil fuel over the sea

Page 18: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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Page 19: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Surface and subsurface mining cause pollution and degradation of stream and groundwater by runoff of acids

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Page 20: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

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

global warming climate changeProjected emissions of three important greenhouse gases as a result of human activities

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Page 21: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Several Impact of human activities cause a major issue:CLIMATE CHANGE

EFFECT of CLIMATE CHANGE to HUMAN HEALTH

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Page 22: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Building roads is one of human activities that cause destruction and degradation land and ecosystem

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Page 23: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Soil Degradation

Areas of degraded soil of the world

Page 24: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Controlling pest population by spraying a pesticides

● About 2.5 million tonsof pesticides are use yearly in developed and developing countries to control pests such as insects

● The use of pesticides threat human health:

-According WHO, nearly 3 million agricultural workers in developing countries are seriously poisoned by pesticides each year, estimated 180,000 deaths-In developed country such as USA, 300,000 farms worker suffer from pesticides related illnesses each year

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Page 25: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Decline of marine species (mostly fish)

About 75% of the world’s commercial oceanic fish stocks are in decline

Overfishing

Pollution, habitat degradation 19

Page 26: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Overload wastes into water cause degradation of water quality

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Page 27: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Water use● Only a tiny amount of world’s abundant water is

available as fresh water (2.6%)

● Water is collected, purified, recycled, distributed fresh water available

● Human withdraw fresh water from rivers, lakes, andaquifers for cities, residences and industry uses, andalso to irrigate cropland

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Page 28: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Global water use

Page 29: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

The use of too much water by human may effect to the avaibility of fresh water

● Due to large population, human withdraw underground water faster than it is replenished depletion of fresh water

● If it is happened near a coast, salt water can intrudes into aquifer and contaminate drinking water along coastal area

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Page 32: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Too much water: flooding● Natural flooding primarily caused by heavy rain and

degradation of water holding capacity of soil

● Natural flooding have benefits:- provide productive farmland- recharge groundwater- refill wetland

● However, each year flood kills thousands of people and cause property damage

● Since 1960 human activities have contributed a severe flood damage by:-removing water-absorbing vegetation (hillsides)-draining wetland that absorb floodwater-living on flood plain

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Page 33: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Flood Plain

Hillside

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Page 34: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Nuclear power● Produce energy: produce electricity at much lower cost than coal

● High-level radioactive wastes (stored in pool of water at plant site)

● Nuclear disaster happened at Ukraine (Chernobyl nuclear power plant) in 1986:- killed 3,576 ~ 32,000 people- a series of explosions caused a huge

radioactive d cloud spread over Ukraine, Russia and other parts of Europe

- forced 40,000 people to leave their homes, probably never to return

● Global nuclear power plant peaked in the 1990s and is projected to decline

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Page 35: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Information and globalization revolution● Technologies such as telephone,

radio, television, computers, the internet, remote sensing satellites providing people to access people to have much more information on a global scale

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Page 36: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Positive affect of information and globalization revolution● Allow us to respond environmental

problems more effectively and rapidly● Allow us to use remote sensing satellites to

survey resources and monitor changes in theworld’s forests, grassland, oceans, rivers, polarregions, cities, and other system

● Can reduce pollution and environmental degradation by substituting data for materials and energy and communication for transportation

● Allow environmental researchers and activist to exchange data and information rapidly

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Page 37: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Negative affect of information and globalization revolution● IT could cause 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 and homogenizes the world’s cultures including disease

● Creating and introducing new technologies much faster than we ca evaluate their impacts

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Page 38: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Infectious disease● Spread by air, water, food, body

fluids, some insects, and other nonhuman carrier (vector)

● Human activities such as International traveling can rapidly spread diseases such as flu, measles, chlorella, smallpox and AIDS

● Migration to uninhabited rural areas and deforestation in tropical country can expose to disease spread by vectors such as malaria

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Page 39: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Humans activities affected biodiversity

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Page 40: Microsoft PowerPoint - TOPIC-6_ Impact of human Act_edit Web view04-03-2015 · Food gathering. Agricultural ... fossil fuel production , increase the use of pesticide and chemical

Kill endangered animal cause depletion of biodiversity

Consume such protein endanger Confiscated products fromspecies of Gorilla endangered species

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