Environmental Issues.

Slides:

Advertisements

Similar presentations

KEY CONCEPT pg. 488 Fossil fuel emissions affect the biosphere.

Advertisements

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)

Interconnected Planet

ENVIRONMENTAL SCIENCE II FINAL EXAM REVIEW UNIT 3: AIR POLLUTION Final Exam will be on Wednesday June 10, 2015 The final exam is worth 20% of your final.

Human Impact on the Environment:

Global Change and the Human Impact. Environmental services and goods Q: What are some services you get from the environment? Renewable They can be used.

Unit 4 Human Impact on the Environment. Population Three factors that affect population: –Number of births –Number of deaths –Number of individuals that.

Chapter 56: Conservation Biology and Global Change

PP : ENVIRONMENTAL ISSUES. Pollution Putting substances that cause unintended harm into the air, soil, or water.

Threat 1: Ozone Depletion  Description: The ozone layer protects us from ultraviolet (UV) radiation from the sun, but it is becoming thinner in places.

Environmental Effects of Overpopulation

1 Human Impact How do humans impact their environment?

Human Impacts: Atmosphere

Global Changes in the Atmosphere

9/24/13 Objective: How are humans impacting the environment? Do Now: What is this picture depicting?

Environmental Issues Human Impact on the Environment.

9/24/14 Objective: How are humans impacting the environment? Do Now: Take out your Picture reflection from yesterday And your hw.

AIM: What are the effects of air pollution on the environment Do Now: What is air pollution? Explain why it is harmful.

Environmental Issues Causes and Effects. Greenhouse Effect  Cause:  Water vapor, Carbon Dioxide (CO2), methane, and other gases trap heat that radiates.

Human Activities and the Earth’s Valuable Water and Air Resources

HUMAN IMPACT on the BIOSPHERE Chapter 6-4 Charting a course for the Future

AIM: How does pollution affect the environment?

Pollution. What is air pollution? …air that contains harmful substances at unhealthy levels.

Aim: How have air pollutants affected the atmosphere?

Pollution You do NOT need to write the things highlighted in RED font.

Human Impact on the Environment Cost vs Benefit.

Flashcard Warm-up Biodiversity Variation in the different species that live in an ecosystem. Depends largely upon the variation of plant life, which depends.

Rapid warming is changing the global climate The scientific debate about global warming is over—cause of warming is still debated –Global temperature has.

16.2 Air Quality KEY CONCEPT Fossil fuel emissions affect the biosphere.

Chapter 6 Humans in the Biosphere. Chapter 6 Section 1 A Changing Landscape.

GLOBAL WARMING Presented By, C. JAYANTHI J. PREETHI S. MEENA.

Ch. 56 Warm-Up 1. How does acid precipitation affect the environment? 2. Explain how the greenhouse effect can be both positive and negative. 3. Should.

CHAPTER 13 – ATMOSPHERE AND CLIMATE CHANGE Section 3a – Climate Change.

AIM: How does pollution affect the environment?

Unit 4 Lesson 3 Human Impact on the Atmosphere

Unit 4 Lesson 3 Human Impact on the Atmosphere

Introduction to Ecology

Human Impacts on Climate

AIM: How does pollution affect the environment?

Ch. 56 Curious Question How does acid precipitation affect the environment? Explain how the greenhouse effect can be both positive and negative. Should.

Resources for Energy State Objective 4.d..

Impacts on the Atmosphere

Environmental Problems

Global Changes in the Atmosphere

Earth Science Chapter 11.2 Climate Change.

The Greenhouse Effect.

Resources and the Environment

Greenhouse Effect 2.6.2B EXPLAIN THE CONCEPT OF THE GREENHOUSE EFFECT INCLUDING A LIST OF SPECIFIC GREENHOUSE GASES AND WHY CO2 IS MOST OFTEN THE FOCUS.

Human Impact on Ecosystems

Air Pollution,Climate Change,and Global Warming

Human Impact on Ecosystems

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Topic to be studied: Air Pollution

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Section 2 The Ozone Shield

All About the Air….

22-2: ENVIRONMENTAL ISSUES

Chapter 55: Conservation Biology and Global Change

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Chapter 56: Conservation Biology and Global Change

Human Impact on the Environment

Overpopulation.

The Atmosphere.

Ch. 55 Warm-Up How does acid precipitation affect the environment?

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Ch. 56 Warm-Up How does acid precipitation affect the environment?

Climate Change – Examining the Evidence

Presentation transcript:

Environmental Issues

Pollution Pollution any potentially harmful substance added to an ecosystem. Can lead to the extinction of species, cause cancer, and cause global change by damaging connected ecosystems.

I. Global Warming A. Greenhouse Effect Greenhouse gases trap heat from the sun. Examples: Water Vapor Carbon Dioxide (CO2) Methane Nitrous Gases Global Warming Video

Global Warming The Greenhouse effect prevents heat from disappearing into space and enables Earth to sustain life as we know it. Are human activities leading to an enhancement of the greenhouse effect?

Do You Notice a Trend?

Are Greenhouse Gases Increasing? From Antarctic Ice Core Samples: Pre-Industrial revolution 280 ppm 2007 Global Average 384 ppm NASA Data via National Geo.

World Temperatures Earth is on average 1.3° F warmer today than 100 years ago. Most dramatic change has been in the Arctic, where average temperatures have risen 4 °– 5 ° F.

B. Possible Consequences? Rising Sea levels. Extreme Weather. Extinction of Species

II. Ozone Depletion A. Ozone Naturally occurring gas that helps protect the Earth from Ultraviolet (UV) radiation.

Ozone Depletion B. Chlorofluorocarbons (CFCs) react with UV rays to rip apart the ozone. CFC’s were found in aerosol sprays and air conditioner coolants. Ozone video

C. Ozone Consequences Increased concentration of UV Rays could cause: Increase in Skin cancer rates Increase in cataracts. Crops to suffer in affected areas.

D. Acid Rain Acid rain -Describes any form of precipitation with high levels of nitric and sulfuric acids. Burning of fossil fuels release these substances into the air. Acid Rain Video National Geographic

Acid Rain Acid rain includes rain, sleet or snow with a pH level that falls below 5.6 (normal rainwater) The average pH of rainfall in Pennsylvania is 4.3. This level is some of the most acidic rain in the country.

Acid Rain Low water and soil pH could put stress and pressure on organisms within an ecosystem.

E. Deforestation Deforestation causes: Loss of Habitat Loss of genetic variation (Loss of Biodiversity) Loss of Inhabitable space for humans

F. Conservation Conservation: is the preservation and wise use of natural resources. Renewable Energy Wind Solar Hydroelectic Geothermal