Global Climate Change: What the Future Holds, and What We Can Do About It
|
|
- Rudolph Reynolds
- 6 years ago
- Views:
Transcription
1 Global Climate Change: What the Future Holds, and What We Can Do About It Dr. David Karowe Professor, Department of Biological Sciences Schedule of Topics September 29: Recent climate change (Dave Karowe) 1
2 October 6: Future climate change (Dave Karowe) October 13: Effects of climate change on plants and animals (Dave Karowe) current future 2
3 October 20: Effects of climate change on aquatic ecosystems (Chuck Ide) October 27: Effects of climate change on human health (Dave Karowe) 3
4 November 3: Economics of climate change (Dave Karowe) Skeptics arguments (Dave Karowe) November 10: Biofuels, carbon capture and storage (Steve Bertman and Dave Barnes) 4
5 November 17: Wind, solar, and personal behaviors (John Patten and Dave Karowe) Earth s climate has always changed Over the last billion years: - but most or all large changes ( 2 o C) have taken hundreds of thousands or millions of years 5
6 Very good temperature data exist for the past 800,000 years: ~ 100,000 yr glacial/interglacial cycles Data come from ice cores with annual rings 18 O/ 16 O 6
7 What has caused climate to change over the last 800,000 years? Long-term climate change due to cyclic changes in Earth's orbit, tilt, and precession of the equinoxes (Milankovitch cycles) Orbital eccentricity: ~100,000 years Axial tilt: ~41,000 years Precession: ~26,000 years 7
8 What s happened over the last 21,000 years? The future projection is based on the assumption of complete cessation of carbon dioxide emissions in 2100 (~IPCC A2). Because future world population is uncertain, it was frozen at 7 billion people. What was North America like the last time Earth was ~ 5 o C cooler? 19,000 BC - Michigan was covered by almost a mile of ice 8
9 What s been happening over the last 1,500 years? modern warming Little Ice Age - tree ring and thermometer records indicate two anomalous periods since 500 AD Little Ice Age due to temporary reduction in solar output ~1 o C cooling of Northern Hemisphere Maunder minimum 9
10 What s been happening over the last 130 years? modern warming Since 1880, Earth has warmed ~ 0.8 o C Temperature Change ( o C) 10 warmest years in history: 2010, 2005, 2007, 2009, 1998*, 2007, 2002, 2003, 2004, and
11 Temperature difference relative to Rate of global warming has been increasing - global rate over land since 1979 is 5 times faster than since 1850 Global Land Ocean Northern Hemi. Land Ocean Southern Hemi. Land Ocean land is warming faster than the ocean - Northern Hemisphere is warming faster than Southern 11
12 Since 1900, greatest warming in northern North America, Asian interior, and southeastern Brazil In Western Hemisphere, greatest warming in winter; in Eastern Hemisphere, greatest warming in spring - but warming has occurred in all seasons 12
13 Since 1979, Michigan has warmed by ~0.75 o C Antarctic peninsula Arctic Temperature relative the mean - pronounced latitudinal pattern to recent warming Did 2010 feel like a particularly warm year? -Michigan was ~0.75 o C above the mean Temperature relative the mean 13
14 Last summer was Michigan s 6 th warmest on record This summer was Michigan s 18 th warmest on record 14
15 Since 1900, no consistent trend in total global precipitation But heavy precipitation events now account for a higher percent of total precipitation 15
16 Severe storms cause flooding, erosion, disease Flooding has increased globally in the last 50 years 16
17 In the U.S., severe rainstorms are now more common - 20% increase in Michigan since % increase in southwest Michigan This year, Michigan had its 2 nd wettest spring on record 17
18 As a result, Michigan experienced flooding this spring but Ohio had it worse 18
19 And there was extensive flooding along Mississippi Tunica, Mississippi Droughts have also increased, especially since droughts are more widespread because of warming since
20 Since 1950, global land surface area in severe or extreme drought increased from 13% to 30% Currently, 43% of U.S. is in drought 35% 18% 66% 85% Exceptional Drought: PDSI <- 5.0 or <5% of normal rainfall 20
21 Currently, 7% of Michigan is in drought - another 29% is abnormally dry September 20 As a result, the cryosphere has been melting - ice sheets, ice shelves, sea ice, glaciers, ice caps, frozen ground (permafrost) - any melting produces a positive feedback by reduced albedo (reflectivity) 21
22 Arctic summer sea ice extent (area) has been decreasing by up to 10% per decade - record low in thickness has decreased by >40% since 1960 Glaciers have been retreating worldwide ice loss from 30 reference glaciers from was twice as fast as the previous decade, and four times as fast as the decade before that ( ) 22
23 Recently, 97% of Earth s glaciers have been retreating Red = retreating Blue - advancing Seasonal snowcover has also been decreasing - mean winter maximum of 33% of Earth s land surface, ~98% in the Northern Hemisphere - so biggest albedo effect - earlier spring snowmelt in western U.S. - effects on soil moisture 23
24 Greenland ice sheet is melting at an accelerating rate - meltwater also accelerates ice slippage into ocean Antarctic ice shelves are shattering - recent collapse of Wilkins Ice Shelf 24
25 Lake and river ice are also decreasing - since 1850, for NH lakes and rivers, spring ice breakup is ~9 days earlier, and autumn freeze-up is ~10 days later Freeze dates ice cover has decreased by ~4 weeks for Grand Traverse Bay Breakup dates Permafrost is warming and, to a small extent, melting ~25% of NH land mass is underlain by permafrost - thickness of active layer has increased by ~10-30 cm since mid-1990s in many sites 25
26 Warming is detectable to ~40 meters in many places Can climate change be due to natural variation? Since 1900, energy increase from greenhouse gasses is about 20 times energy increase from the sun 26
27 Since 1900, energy increase from greenhouse gasses is about 20 times energy increase from the sun GHG added ~ 2.98 W/m 2 aerosols removed ~ -1.4 W/m 2 the sun added ~ 0.12 W/m 2 - aerosols have masked ~40% of the GHG warming During the current time of most rapid warming (the last 30 years), solar irradiance has been decreasing Solar Irradiance 27
28 Finally, models do a good job of replicating past climate change only if they use anthropogenic forcings natural variation would most likely have caused a slight cooling since 1900 So what s really causing current warming? Greenhouse gasses GHGs let visible wavelengths pass, but absorb and re-radiate IR (heat) Some greenhouse effect is necessary for life on Earth 28
29 The carbon cycle is out of balance Net: +4 bty +2 bty -3 bty +8 bty -3 bty Increased greenhouse gas (GHG) concentrations -CO 2 increased from 280 ppm < 1850 to >390 ppm today - CO 2 accounts for ~60% of GHG warming - methane, nitrous oxide, CFCs, ozone cause the rest 29
30 U.S. probably emits more carbon than any other major country Midwest would be 4 th highest emitting country Countries proportional to their 2000 emissions 30
31 U.S. also emits the most carbon per capita Residential and transportation sectors account for about half of US energy consumption (~80% heating and appliances) (~80% cars and trucks) 31
32 85% of US energy use comes from fossil fuels Hydropower Biomass Geothermal Wind Solar 2.4% 3.6% 0.3% 0.3% 0.08% Land use change (mostly deforestation) is also a major contributor to increased GHG levels - accounts for 20-25% of CO 2 added to the atmosphere 32
33 Best estimate: ~95% of current warming is due to human activities Greenhouse gas emissions Deforestation 33
Anthropogenic Climate Change: Past, Present, and Future. Dr. David Karowe Department of Biological Sciences. Earth s climate is always changing
Anthropogenic Climate Change: Past, Present, and Future Dr. David Karowe Department of Biological Sciences Earth s climate is always changing 1 Antarctic ice cores provide a record of Earth s climate over
More informationCHAPTER 16 Oceans & Climate Change Chapter Overview Earth s Climate System Earth s Climate System Earth s Climate System Earth s Climate System
1 CHAPTER 16 2 3 4 5 6 7 8 9 10 11 12 Oceans & Climate Change Chapter Overview Humans are adding greenhouse gases to Earth s atmosphere. Climate change will cause many severe problems in the ocean environment.
More informationFeedback loops modify atmospheric processes
Chapter Overview CHAPTER 16 Oceans & Climate Change Humans are adding greenhouse gases to Earth s atmosphere. Climate change will cause many severe problems in the ocean environment. It is necessary to
More informationEssentials of Oceanography Eleventh Edition
Chapter Chapter 1 16 Clickers Lecture Essentials of Oceanography Eleventh Edition The Oceans and Climate Change Alan P. Trujillo Harold V. Thurman Chapter Overview Humans are adding greenhouse gases to
More informationFACTS ABOUT GL BAL WARMING. gogreen. Shop visit An Ekotribe Initiative
FACTS ABOUT GL BAL WARMING Shop Online @ www.thegreenecostore.com Definition The earth is a natural greenhouse and is kept warm by water vapors, carbon dioxide (CO2), and other gases in the atmosphere,
More informationDef: Climate is the average weather. Averages all the local, regional and global extremes in weather. - Occurs on long time scales
Climate Change Def: Climate is the average weather. Averages all the local, regional and global extremes in weather. - Occurs on long time scales Most important factor in climate is how the Earth responds
More informationCarbon Dioxide and Global Warming Case Study
Carbon Dioxide and Global Warming Case Study Key Concepts: Greenhouse Gas Carbon dioxide El Niño Global warming Greenhouse effect Greenhouse gas La Niña Land use Methane Nitrous oxide Radiative forcing
More informationAnnouncements. Homework 7 - due today Homework 8 - paper 2 topics, questions and sources due Tuesday, Nov. 13 Midterm Paper 2 - due Tuesday, Nov.
Tuesday, November 6th. Announcements. Homework 7 - due today Homework 8 - paper 2 topics, questions and sources due Tuesday, Nov. 13 Midterm Paper 2 - due Tuesday, Nov. 20 Lecture #17-1 For next week..homework
More informationScientific Foundation of Climate Change. Human Responsibility for Climate Change
Scientific Foundation of Climate Change EOH 468 CSU Northridge Spring 2010 Peter Bellin, CIH, Ph.D. 1 Human Responsibility for Climate Change The IPCC finds that it is very likely that emissions of heat-trapping
More informationChapter Overview. Earth s Climate System. Earth s Climate System. Earth s Climate System. CHAPTER 16 The Oceans and Climate Change
Chapter Overview CHAPTER 16 The Oceans and Climate Humans are adding greenhouse gases to Earth s atmosphere. Climate change will cause many severe problems in the ocean environment. It is necessary to
More informationIs the Climate Changing? Is the Climate Changing? Is the Climate Changing? Is the Climate Changing? 12/13/2016. Yes!
1 2 3 Yes! 4 Yes! But Earth's climate is always changing! 5 Yes! But Earth's climate is always changing! 6 Throughout its 4.5 billion year history, Earth's climate has alternated between periods of warmth
More informationNATS 101 Section 13: Lecture 34. Global Warming Part I
NATS 101 Section 13: Lecture 34 Global Warming Part I Outline of three part global warming presentation What is the problem? How has the Earth s climate changed in recent years? Are these changes attributable
More informationPast climates Past climates were different than today. Global climate change. Climate change
Past climates Past climates were different than today Warmer: Europe 900 1300 AD (Medieval Times) Cooler: Northern Hemisphere - Little Ice Age 1500-1850 AD Wetter: North Africa 1 million+ y.o.: savanna
More informationThe Water Cycle, Atmosphere, and Cryosphere. OCN 623 Chemical Oceanography 12 April 2018
The Water Cycle, Atmosphere, and Cryosphere OCN 623 Chemical Oceanography 12 April 2018 Student Learning Outcomes (SLOs) At the completion of today s section, students should be able to: 1. Summarize components
More informationGlobal Warming. By William K. Tong. Adjunct Faculty, Earth Science Oakton Community College
Global Warming By William K. Tong Adjunct Faculty, Earth Science Oakton Community College What Is Global Warming? According to the National Academy of Sciences, the Earth's surface temperature has risen
More informationGlobal Warming and Climate Change
Global Warming and Climate Change Weather vs. Climate Weather refers to short term conditions (e.g. 24 hrs.) in meteorological conditions such as temperature, pressure and rainfall Climate is average weather
More informationChapter 19: Global Change
1 Summary Of the Case Study Polar Bear population in the Antarctic going down because temperatures are going up and melting the caps. Polar bears are losing their habitat, they also can t get their food
More informationChapter 19 Global Change
Chapter 19 Global Change Global Change Global change- any chemical, biological or physical property change of the planet. Examples include cold temperatures causing ice ages. Global climate change-changes
More informationClimate: Earth s Dynamic Equilibrium
Climate: Earth s Dynamic Equilibrium review session CCIU April 30, 2016 High-school standard HS-ESS2-4 focuses on the role energy flows play in Earth s climate HS-ESS2-4 Use a model to describe how variations
More information3/5/2012. Study Questions. Global Warming. Weather: daily temperature and moisture conditions Climate: long-term weather patterns
Study Questions Global Warming 1. Explain what is meant by the term Greenhouse effect. 2. List 3 indications that global climate is currently increasing. 3. Describe 3 possible consequences of global warming.
More informationGlobal warming. Models for global warming Sand analogy
8.10 Global warming Assessment statements 8.6.1 Describe some possible models of global warming. 8.6. State what is meant by the enhanced greenhouse effect. 8.6.3 Identify the increased combustion of fossil
More informationClimate Change Science Tutorial #1: Overview of Our Understanding of the Climate System and Observed Climate Impacts
Climate Change Science Tutorial #1: Overview of Our Understanding of the Climate System and Observed Climate Impacts September 2013 ACS Climate Science Project, OMSI Others work, collected by Prof. Julie
More informationThe IPCC Working Group I Assessment of Physical Climate Change
The IPCC Working Group I Assessment of Physical Climate Change Martin Manning Director, IPCC Working Group I Support Unit 1. Observed climate change 2. Drivers of climate change 3. Attribution of cause
More informationEnergy, Greenhouse Gases and the Carbon Cycle
Energy, Greenhouse Gases and the Carbon Cycle David Allen Gertz Regents Professor in Chemical Engineering, and Director, Center for Energy and Environmental Resources Concepts for today Greenhouse Effect
More informationHuman Impact on the Environment: Part I
Human Impact on the Environment: Part I The late Alan Gregg pointed out that human population growth within the ecosystem was closely analogous to the growth of malignant tumor cells, that man was acting
More informationHuman Activity and Climate Change
Human Activity and Climate Change Textbook pages 482 501 Section 11.1 11.2 Summary Before You Read How might climate change affect the region where you live? Record your thoughts in the lines below. What
More information20 Global Climate Change
20 Global Climate Change Overview of Chapter 20 Introduction to Climate Change Causes of Global Climate Change Effects of Climate Change Melting Ice and Rising Sea Level Changes in Precipitation Patterns
More information7th Grade. Climate and Weather. Slide 1 / 161 Slide 2 / 161. Slide 3 / 161. Slide 4 / 161. Slide 6 / 161. Slide 5 / 161. Global Climate Change
Slide 1 / 161 Slide 2 / 161 7th Grade Global Climate Change 2015-11-03 www.njctl.org Slide 3 / 161 Global Climate Change Slide 4 / 161 Climate and Weather The Greenhouse Effect Global Climate Change Anthropogenic
More information7th Grade. Slide 1 / 161. Slide 2 / 161. Slide 3 / 161. Global Climate Change. Global Climate Change
Slide 1 / 161 Slide 2 / 161 7th Grade Global Climate Change 2015-11-03 www.njctl.org Global Climate Change Slide 3 / 161 Climate and Weather The Greenhouse Effect Global Climate Change Anthropogenic Causes
More informationCurrent understanding of global climate change and of its possible impacts on agriculture. Maurizio Sciortino.
Current understanding of global climate change and of its possible impacts on agriculture Maurizio Sciortino maurizio.sciortino@enea.it Outline 1. Scientific understanding of climate change The greenhouse
More informationATM S 211 Final Examination June 4, 2007
ATM S 211 Final Examination June 4, 2007 Name This examination consists of a total of 100 points. In each of the first two sections, you have a choice of which questions to answer. Please note that you
More informationChapter 19 Global Change
Chapter 19 Global Change Global Change change - any chemical, biological or physical property change of the planet. Examples include cold temperatures causing ice ages. Global change - changes in the climate
More informationGreenhouse Effect. The Greenhouse Effect
Greenhouse Effect The Greenhouse Effect Greenhouse gases let short-wavelength radiation come into the Earth s atmosphere from the sun. However, they absorb and re-radiate Earth s long-wavelength radiation
More informationAnnouncements. Homework 8 - paper 2 topics, questions and sources due Tuesday, Nov. 13 Midterm Paper 2 - due Tuesday, Nov. 20
Thursday, November 6th. Announcements. Homework 8 - paper 2 topics, questions and sources due Tuesday, Nov. 13 Midterm Paper 2 - due Tuesday, Nov. 20 Lecture #18-1 Lecture #18-2 http://dotearth.blogs.nytimes.com/2007/11/06/project-to-harness-plankton-puts-to-sea/index.html
More informationConcentrations of several of these greenhouse gases (CO 2, CH 4, N 2 O and CFCs) have increased dramatically in the last hundred years due to human
Global Warming 1.1 The facts: With no atmosphere surrounding the earth the surface temperature would be 17 o C. However, due to the greenhouse gases in the atmosphere that absorb infrared radiation emitted
More informationToday. Events. Terrestrial Planet Climate. Homework DUE. Review next time. Exam next week
Today Terrestrial Planet Climate Events Homework DUE Review next time Exam next week Wonders of the Industrial Age From 1912 Weather and Climate Weather is the ever-varying combination of wind, clouds,
More informationTopic 4 - Environment. Conditions for life
Topic 4 - Environment Conditions for life Body Core Temperature Temperature of internal organs (liver, heart, intestines) Human core temperature: 37.5 o C Regulation of body core temperature Radiation:
More informationEvidence and implications of anthropogenic climate change
Evidence and implications of anthropogenic climate change Earth s Climate has always been changing 1) Is climate changing now? Global Warming? Sea level rising IPCC 2007 Fig. 5.13 (p. 410) Recontructed
More informationContents. Permafrost Global Warming: An Introduction...4. Earth Is Getting Hotter...6. Green Homes The Greenhouse Effect...
Contents Global Warming: An Introduction...4 Earth Is Getting Hotter...6 The Greenhouse Effect...8 Greenhouse Gases...10 Ozone Layer Depletion...12 The Carbon Cycle...14 The Kyoto Protocol...16 Climate
More informationChapter 19 Global Change. Wednesday, April 18, 18
Chapter 19 Global Change Module 62 Global Climate Change and the Greenhouse Effect After reading this module you should be able to distinguish among global change, global climate change, and global warming.
More informationIntergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report
Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report Andrea J. Ray, Ph.D. NOAA Earth Systems Research Lab & NOAA-CIRES Western Water Assessment Boulder, CO Andrea.Ray@noaa.gov http:/www.cdc.noaa.gov
More information20 Global Climate Change
20 Global Climate Change Overview of Chapter 20 Introduction to Climate Change Causes of Global Climate Change Effects of Climate Change Melting Ice and Rising Sea Level Changes in Precipitation Patterns
More informationFunding provided by NOAA Sectoral Applications Research Project ALTERING CLIMATE. Basic Climatology Oklahoma Climatological Survey
Funding provided by NOAA Sectoral Applications Research Project ALTERING CLIMATE Basic Climatology Oklahoma Climatological Survey ATMOSPHERIC POLLUTANTS Acid Rain Acid Rain is the precipitation that carries
More informationBasics of Sustainability. Climate Change
Basics of Sustainability 2 Climate Change 1 Contents Page Aims. 2 Introduction. 3 Causes of Climate Change: Natural and Human Influences. 3 The Impacts of Climate Change.. 4 Mitigating Climate Change...
More information7th Grade Global Climate Change
Slide 1 / 161 Slide 2 / 161 7th Grade Global Climate Change 2015-11-03 www.njctl.org Slide 3 / 161 Global Climate Change Climate and Weather The Greenhouse Effect Global Climate Change Anthropogenic Causes
More informationThe Science of Climate Change
The Science of Climate Change http://data.giss.nasa.gov/gistemp/ Glaciers are retreating worldwide, including Colorado Arapahoe Glacier, 1917 Arapahoe Glacier, 2004 Sea Level is Rising End of summer ice
More informationGlobal Climate Change
Global Climate Change MODULE 11: GLOBAL CLIMATE CHANGE UNIT 1: BIODIVERSITY Objectives Define terms. Understand global climate change. Describe the basic predictions of the global climate models. Understand
More informationGlobal Warming Science Solar Radiation
SUN Ozone and Oxygen absorb 190-290 nm. Latent heat from the surface (evaporation/ condensation) Global Warming Science Solar Radiation Turbulent heat from the surface (convection) Some infrared radiation
More informationClimate Change. Susan Nossal Department of Physics University of Wisconsin-Madison. Physics October 24, 2008
Climate Change Susan Nossal Department of Physics University of Wisconsin-Madison Physics 207 - October 24, 2008 Overview Greenhouse effect Greenhouse gases Observations of climate change Long term lake
More informationState of the global climate 2012 with reference to the past 20 years
State of the global climate 2012 with reference to the past 20 years 2012 Further developed from the past 20 year UNEP report Keeping Track of Our Changing Environment From Rio to Rio+20 (1992-2012) UNEP
More informationClimate Change. (Adopted by AMS Council on 1 February 2007) Bull. Amer. Met. Soc., 88
Climate Change An Information Statement of the American Meteorological Society (Adopted by AMS Council on 1 February 2007) Bull. Amer. Met. Soc., 88 The following is an Information Statement intended to
More informationGlobal Perspective on Climate Change
Global Perspective on Climate Change Dr. Barrie Pittock, PSM Former Leader of Climate Impact Group, CSIRO Lead Author IPCC Reports, 1995, 1998, 2001 Editor, AGO Climate Change Guide 2003 Author, Climate
More informationNormal equatorial flow. Climate Variability. El Niño-Southern Oscillation Human-caused climate change Alternative Energy sources
Normal equatorial flow Climate Variability El Niño-Southern Oscillation Human-caused climate change Alternative Energy sources Vertical normal flow ENSO disruption of flow Vertical ENSO flow Normal vs.
More informationGlobal Warming & Climate Change Review Learning Target 1
Learning Target 1 Click and drag the word to fit the proper description. Word Ice Off Dates Ice Core Samples Description 1.Scientist can check the gases in the bubbles and provide a good estimate of the
More informationSession 14 Unit VI CLIMATIC CHANGE AND GLOBAL WARMING
Session 14 Unit VI CLIMATIC CHANGE AND GLOBAL WARMING Dr. H.S. Ramesh Professor of Environmental Engineering S.J. College of Engineering, Mysore 570 006 Carbon di-oxide is a natural constituent of atmosphere,
More informationThe Science of Climate Change
The Science of Climate Change Dr Mark Diesendorf Associate Professor & Deputy Director Institute of Environmental Studies University of New South Wales m.diesendorf@unsw.edu.au December 2014 1 Background
More informationGlobal Ocean and Atmosphere Temperature Trends Compared
Warmer Oceans result in coral bleaching and the death of coral reefs support more powerful hurricanes 32 Global Ocean and Atmosphere Temperature Trends Compared 33 Warmer Oceans and Coral Bleaching 1997-1998
More informationENSC425/625 Climate Change and Global Warming
ENSC425/625 Climate Change and Global Warming 1 Emission scenarios of greenhouse gases Projections of climate change Regional climate change (North America) Observed Changes and their Uncertainty 2 Figure
More informationGreenhouse Effect & Climate Change
Greenhouse Effect & Climate Change Greenhouse Effect Light energy from the sun (solar radiation) is either reflected or absorbed by the Earth. Greenhouse Effect When it is absorbed by the Earth (or something
More informationLecture 11: Global Warming. Human Acticities. Natural Climate Changes. Global Warming: Natural or Man-Made CO 2 CH 4
Lecture 11: Global Warming Human Acticities CO 2 CH 4 The initial appearance of human species: last 100,000 to 200,000 years Development of the first civilization: the last 10,000 years What is the sensitivity
More informationClimate Change and Air Quality
Climate Change and Air Quality SW PA Air Quality Action June 6, 2007 Peter J. Adams Associate Professor Civil and Environmental Engineering Engineering and Public Policy Outline Climate Change Primer What
More informationCauses of past climate change and projections of future changes in climate. Peter Stott Met Office Hadley Centre, UK
Causes of past climate change and projections of future changes in climate Peter Stott Met Office Hadley Centre, UK Overview 1.The causes of observed climate change 2.Global and regional climate projections
More informationGrade 10 Academic Science Climate Change Unit Test
Grade 10 Academic Science Climate Change Unit Test Part A - Multiple Choice: Circle the most correct answer. 1. What is the difference between weather and climate? a. Weather deals with wind and precipitation;
More informationChapter 21 Global Climate Change
Chapter 21 Global Climate Change Overview of Chapter 21 Introduction to Climate Change Causes of Global Climate Change Effects of Climate Change Melting Ice and Rising Sea Level Changes in Precipitation
More informationREPORT. Executive Summary
C C C R 2 01 9 REPORT Executive Summary 2 Canada s Changing Climate Report Executive Summary 3 Authors Elizabeth Bush, Environment and Climate Change Canada Nathan Gillett, Environment and Climate Change
More informationWater on Land. The Hydrosphere. Hydrosphere. The Earth Consists of Overlapping Layers:
The Hydrosphere Earth and Space Continued The Earth Consists of Overlapping Layers: 1. Hydrosphere + Cryosphere 2. Atmosphere 3. Biosphere 4. Lithosphere Hydrosphere The is earth s outer layer of water.
More informationGREENHOUSE GASES 3/14/2016. Water Vapor, CO 2, CFCs, Methane and NO x all absorb radiation Water vapor and CO 2 are the primary greenhouse gases
GREENHOUSE EFFECT The earth is like a greenhouse The atmosphere acts like the glass which lets the sun s rays pass through. The earth absorbs this as heat energy and keeps it in, only letting a little
More informationThe context: 6.7 billion people 1 planet. Is there a future?
Global Warming: The Scientific Basis for Anthropogenic Climate Change The context: 6.7 billion people 1 planet. Is there a future? The global average net effect of human activities since 1750 has been
More informationConclusions of the IPCC Working Group I Fifth Assessment Report, AR4, SREX and SRREN
Conclusions of the IPCC Working Group I Fifth Assessment Report, AR4, SREX and SRREN R. K. Pachauri 11 November 2013 Warsaw, Poland Chairman, Intergovernmental Panel on Climate Change 1 Problems cannot
More informationClimate Change Frequently Asked Questions Scrambled Information Source: EPA Climate Change FAQ
Climate Change Frequently Asked Questions Scrambled Information Source: EPA Climate Change FAQ Instructions: The questions and answers below have been scrambled. Cut the answers and questions apart. Separate
More informationGLOBAL CLIMATE CHANGE
1 GLOBAL CLIMATE CHANGE From About Transportation and Climate Change (Source; Volpe center for Climate Change and Environmental forecasting, http://climate.volpe.dot.gov/trans.html Greenhouse effect has
More informationGlobal warming and climate change
Chapter 2 Global warming and climate change Introduction This chapter provides resource material to create energy awareness the link to environmental pollution global warming and its impact on climate
More informationHow Can Thermal Effects Be Explained?
How Can Thermal Effects Be Explained? Lesson 6, Part 3: Climate Science The Enhanced Greenhouse Effect The Earth will maintain equilibrium (constant stable temperature level) if the energy coming in is.
More informationAtmosphere, the Water Cycle and Climate Change
Atmosphere, the Water Cycle and Climate Change OCN 623 Chemical Oceanography 16 April 2013 (Based on previous lectures by Barry Huebert) 2013 F.J. Sansone 1. The water cycle Outline 2. Climate and climate-change
More informationWhat is climate change? - BBC News
What is climate change? - BBC News Media caption Why we should care about climate change? In December, of cials from across the world will gather in Paris, France, to try to hammer out a deal to tackle
More informationEvidence for climate change
Evidence for climate change Climate change over the quaternary period The quaternary period is the most recent geological time period spanning from around 2.6 million years ago to present day. This is
More informationCHAPTER 19. Global Change
CHAPTER 19 Global Change WALKING ON THIN ICE Polar bears play important role in North Pole ecosystem Food seals Important as food and fur for clothing source for indigenous people Problem temperatures
More informationClimate Change not New
Chapter 19: Climate Change and Ozone Depletion APES 2013 1 Climate Change not New Altered by volcanic emissions, changes in solar input, meteor impacts Relatively stable over the last thousand years, but
More informationLecture 7 Global Warming/Climate Change (Observations and Attribution of Cause) METR/ENVS 113 Spring Semester 2011 May 3, 2011
Lecture 7 Global Warming/Climate Change (Observations and Attribution of Cause) METR/ENVS 113 Spring Semester 2011 May 3, 2011 Reading Henson Rough Guide Chapter 1 Pages 75 127; 215; 227-244 Other pages
More informationAMAP and arctic climate change Morten S. Olsen Danish Ministry of Energy, Utilities and Climate
AMAP and arctic climate change Morten S. Olsen Danish Ministry of Energy, Utilities and Climate Arctic Climate Change Impacts 1997 2004/2005 2011 2017 Arctic Pollution Issues, 1997 The effects of global
More informationWhat factors can cause long-term climate change? 2014 Pearson Education, Inc.
What factors can cause long-term climate change? Solar Brightening The Sun very gradually grows brighter with time, increasing the amount of sunlight warming the planets. Changes in Axis Tilt Greater tilt
More informationClimate Change. Some solar radiation is reflected by Earth and the atmosphere. Earth s Surface
Q& A n The Basics of Greenhouse gases affect Earth s energy balance and climate The Sun serves as the primary energy source for Earth s climate. Some of the incoming sunlight is reflected directly back
More informationPhysics 100 Lecture 17. The Greenhouse Effect and Global Warming April 2, 2018
1 Physics 100 Lecture 17 The Greenhouse Effect and Global Warming April 2, 2018 2 Class Quiz Ch. 7: Suppose your car burned bituminous coal instead of gasoline. How much coal would provide the same energy
More informationDo Now 5 Minutes. Based on what you know about the Carbon Cycle, how does carbon dioxide get in to our air?
Do Now 5 Minutes Topic CO 2 Cycles, Feedback Loops, and Albedo Based on what you know about the Carbon Cycle, how does carbon dioxide get in to our air? How does carbon dioxide get removed from the air?
More informationComments on Human and Natural Forcings. Climate changes (1900 to 2000) due to human activity. Climate Variability and Climate Change
Comments on Human and Natural Forcings Human input of GH gases (carbon dioxide, methane, nitrous oxide, ozone, CFCs ) has warmed the planet: net RF = +2.9 W/m 2 The largest single warming factor is increased
More informationTOPIC: The Challenge of Natural Hazards Climate change section Slide 1: Evidence for climate change
Slide 1: Evidence for climate change What is climate change? AQA definition: A long-term change in the earth's climate, normally associated with temperature change. The Earth is 4.5 billion years old.
More informationClimate Change : Facts and Future Scenarios
Climate Change : Facts and Future Scenarios Dr Jim Salinger National Institute of Water & Atmospheric Research, Auckland, NZ FOA/MAF 6 th Annual Forest Biosecurity Workshop 8-9 th March 2007 Outline Facts
More informationHave We Had an Impact? Global Warming. 3 Forms of Heat Transfer. Thickness of Earth s Atmosphere. The Impact on Engineering
Have We Had an Impact? Global Warming The Impact on Engineering Have We Had an Impact? Have We Had an Impact? Thickness of Earth s Atmosphere 3 Forms of Heat Transfer The Earth s atmosphere is very thin.
More informationEffects of Greenhouse Gas Emission
Effects of Greenhouse Gas Emission Reshmi Banerjee Assistant Professor, Dept. of EE, Guru Nanak Institute of Technology, Kolkata, W.B., India ABSTRACT: Gases that trap heat in the atmosphere are called
More informationWeather has always been a hot topic of conversation. We talk about whether it is hot or cold, windy or calm, snowy or dry. We listen to the radio to
Weather has always been a hot topic of conversation. We talk about whether it is hot or cold, windy or calm, snowy or dry. We listen to the radio to figure out if the weather will be different tomorrow.
More informationSCIE 4104E - Environmental Systems Science. Tarendra Lakhankar NOAA-CREST Center, The City University of New York
SCIE 4104E - Environmental Systems Science Tarendra Lakhankar NOAA-CREST Center, The City University of New York About Class This course focuses on Earth as a system and explores the interdependent relationships
More information11/15. Agenda. Albedo Effect Simulator: Discussion Climate Change Notes
Agenda 11/15 Albedo Effect Simulator: Discussion Climate Change Notes Announcements -Test (11/20) -Notebook check (tomorrow) -Lab due (11.59pm, tomorrow) -No quiz tomorrow Criteria Table of contents labeled
More informationGlobal Climate Change
Global Climate Change Devizes & District U3A, 24 th November 2015 Prof. Richard Allan, Department of Meteorology University of Reading Why does Earth s climate change? Earth s Climate has always been changing
More informationClimate Change and the Arctic Ecosystem
Climate Change and the Arctic Ecosystem Key Concepts: Greenhouse Gas WHAT YOU WILL LEARN Biome Carbon sink Global warming Greenhouse effect Permafrost 1. You will analyze how global warming is impacting
More informationGLOBAL WARMING IS HAPPENING GLOBAL WARMING WILL BE VERY HARD TO STOP (By John B. Wheeler, member Potomac River Association)
GLOBAL WARMING IS HAPPENING GLOBAL WARMING WILL BE VERY HARD TO STOP (By John B. Wheeler, member Potomac River Association) READ ON AND SEE WHY YOU NEED TO BE WORRIED The Outline of what follows: 1 The
More informationGLOBAL WARMING COMPUTER LAB
GLOBAL WARMING COMPUTER LAB A COMPUTER SIMULATION PROGRAM ON TEMPERATURE CHANGE AND SEA LEVEL RISING After performing this computer simulation lab you will be able to: 1) understand the greenhouse effect
More informationEarth s Dynamic Climate
UNIT 3 Earth s Dynamic Climate Topic 3.1: What is climate, and how has it changed during Earth s history? Topic 3.2 : Where are the effects of climate change felt, and what is their impact? Topic 3.5:
More informationThe Hydrosphere The hydrosphere is the Earth s outer layer of water The distribution of water on Earth:
The Hydrosphere The Hydrosphere The hydrosphere is the Earth s outer layer of water The distribution of water on Earth: 2.5 97.5 21 79 Catchment Areas Catchment: All the area of land from which water empties
More information