INTRODUCTION Quantitative Problem Qualitative Problem

Slides:

Advertisements

Similar presentations

Human Impact on Water Cycle. Fresh Water on Earth Is Limited Although 75% of the earth is covered in water, only 3% of the water is freshwater. Most of.

Advertisements

Where is the Water Found on Earth?

A Drop in the Bucket Today’s Goal: To learn about water scarcity on a global scale. Also, to learn that there is a finite amount of water on earth and.

Water resources. Water resources are sources of water that are useful or potentially useful to humans. Uses of water include agricultural, industrial,

Earth: The Water Planet What percent of the water on Earth is good enough to drink?

WATER POLLUTION.  Water covers more than 70 percent of the Earth’s surface. While less than 3 percent of this water is drinkable, all of it is necessary.

WATER POLLUTION

Earth Science 4.3 Water, Air, Land Resources

Human Impact on Earth Resources  UNIT 7  STANDARDS: NCES 2.2.2,  LESSON 3.

Human Impact on Ecosystems

Overpopulation ~7 billion people Many natural resources are nonrenewable More people means: –1) More forests removed –2) More resources consumed –3)

Human Impact on Ecosystems

CHAPTER 17 CHAPTER 17 FRESHWATER RESOURCES TOILET TO TAP A California county is tapping controversial sources for drinking water.

Water FRESHWATER IS A SCARCE RESOURCE

Biomes and Conservation

Water Resources. So… Water,Water,Water  Average family uses 329 liters/day  75 liters/day is lost due to dripping faucets  We rank 2 nd in the world.

Unit 8 Water Resources

Environmental Problems Patten & Valdner Global History II Mepham High School Patten & Valdner Global History II Mepham High School.

What is going on in the cartoon? This is an example of Deforestation. As the human population grows, so does the demand for Earth’s resources.

WaterSection 3 Water Pollution Water pollution is the introduction of chemical, physical, or biological agents into water that degrade water quality. The.

SAFETY: The Global Environment Ms. Mai Lawndale High School.

Environmental Health Unit: Water Pollution Lesson

1 Understanding Our Environment. 2 Environmental Science.

Earth’s Waters SQ3R’s. SQ3R Ch. 1, Section 1 How is Water Important *How Do People Use Water? write question Water and Living Things write question Water.

Water Pollution Chapter 21. Major water pollutants Infectious agents –Bacteria, viruses, protozoa, parasites Source – human and animal waste Effect -

Keshav Kohli. The Triple Threat  Flooding (South)  Water Shortages (North)  Contamination by industrial pollution Severe pollution of Tai Lake in eastern.

Water Supply and Pollution

WATER POLLUTION.

Climate Change and Its Effects on Water Quality and Quantity: The Escalating Need for Conflict Management.

HUMAN-ENVIRONMENT INTERACTION: PATTERNS & PROCESSES of CHANGE.

Environmental Problems. Potential to damage the Earth’s diverse habitats which can lead to the extinction of species.

Conserving Resources 8 th Grade Science Book Chapter 14.

Watersheds and Wetlands CHAPTER 1. Lesson 1.5 Factors That Affect Wetlands and Watersheds Human Activities Watershed Quality Health of U.S. Watersheds.

Aseena Mehmood Moiz Tariq Ali Javed  Water pollution  Air pollution  Noise pollution  Soil pollution  Radioactive pollution  Thermal pollution.

AP Environmental Science. "Water and air, the two essential fluids on which all life depends, have become global garbage cans." — Jacques Cousteau.

Review Water Resources 2.5% of the Earth’s water is fresh water. – 70% of that is ice caps and glaciers – Almost 30% is ground water – Remainder.

Food – a resource. Why is food important? 1)Source of energy 2)Source of materials for building new cells & structures **malnourishment can lead to other.

Groundwater Pollution

What is water pollution?

Clean Technology (PB382) Click to edit Master title style Numfon Eaktasang, Ph.D.

Water Pollution Thirsty?.

Chapter Eleven: Water.

Ch.27 Conserving Resources

Water reserves, water pollution, Causes and solutions

Technology And The Environment

Challenges for the Future

Environmental Problems, Their Causes and Sustainability

Environmental Issues The earth’s biodiversity (number of different species that live in an area) is facing a new crisis due to a dominant new animal –

Environmental Issues of Europe

Population Growth and Natural Resource Consumption

Resources and the Environment

Environmental Issues of Europe

Resources and Our Environment

Global Distribution of Water

Human Impact on Ecosystems

Human Effects on Hydrosphere Quality

Environmental Impact of the Industrial Revolution

Where is Earth’s fresh water?

SCIENCE GRADE SIX – ECOLOGY

The water planet Investigation 7 Parts 1 & 2.

Water, Air, and Land Resources

Water Pollution Thirsty?.

Human Effects on Hydrosphere Quality

Humans and Water.

Human Effects on Hydrosphere Quality

Human impact on the Lithosphere

Water: The Indispensible Resources

Presentation transcript:

INTRODUCTION Quantitative Problem Qualitative Problem What is water crisis? It is the shortage of the world’s usable water resources relative to human demand. Quantitative Problem Qualitative Problem Finite sources of fresh water on the earth’s surface Aquifers Surface Water Atmosphere

SOME DISQUIETING FACTS 2/3 of earth’s surface is covered with water Only 2.5% is fresh water 2/3of fresh water is in ice caps and glaciers 20%of the remainder is in remote areas Only 0.08%of the total fresh water is actually available for human consumption

CAUSES OF WATER CRISIS QUANTITATIVE Overpopulation Excessive usage of diesel/electric pumps Imprudent human activities Global warming Conversion of forests into habitable land for humans Diversion of upstream sources Regional conflicts Narrow parochial approach Corruption QUALITATIVE Industrial effluents Sewage water Oil spills Pesticides Synthetic surfactants Inorganic chemicals

CONSEQUENCES OF WATER CRISIS Inadequate drinking water Inadequate sanitation water Cross contamination of drinking water and untreated sewage Spread of water borne diseases especially diarrhea Overexploitation of groundwater Food grain crisis Regional conflicts Irreversible ecological damage Extermination of aquatic life

REMEDIES AND CHALLENGES AT MACRO LEVEL SOLUTIONS CHALLENGES Wind power Solar power Nuclear energy Reducing groundwater exploitation Rain water harvesting Construction of waste water treatment plants Developed countries must share technology Low capacity Very costly Radiation dangers Politically unpopular Difficulty in providing urban space for lakes, ponds etc Capital intensive and high maintenance cost Underdeveloped countries cannot afford to pay for it. AT MICRO LEVEL Educating people Using water economically Reusing water at our own level Rain water harvesting