Science Starter At night the moon is -387  F, and during the day it is 253  F. Q: Why do you think temperatures are so much more extreme on the moon than on earth?

Today’s Agenda Warm Up & Objective Producing A Meal Greenhouse Effect Global Climate Change Exit Ticket 2

Daily Objective SWBAT explain how human activities affect air quality and global warming. 3

What Did it Take to produce this American Meal? Have you had an “American Meal” lately? What goes into making a hamburger, soda, and fries? Read and ANNOTATE this article to get an idea! CODING GUIDE Underline What is Important Circle what you think is important but don’t know Box in key terms Summarize in Margins

Man power (to care for cattle) cattle 2 lbs of grain Land, topsoil loss Pesticides and fertilizers to produce grain Gas for transportation Natural gas For cooking 600 gallons Of water Hamburger

Electricity (for Heating and Cooking) Gas (for transportation) Corn oil (for cooking) HFCs for Cooling unit Diesel-powered harvester Pesticides and Fertilizers 7.5 gallons Of water 10 oz of potatoes Soil, farmland 5 oz Order of French Fries

Estimating your Carbon Footprint Carbon Footprint: a measure of all the greenhouse gases we individually produce; determines the impact our activities have on the environmentCarbon Footprint: a measure of all the greenhouse gases we individually produce; determines the impact our activities have on the environment What’s your carbon footprint? TAKE THE CARBON QUIZ AND FIND OUT!What’s your carbon footprint? TAKE THE CARBON QUIZ AND FIND OUT! Carbon Footprint: a measure of all the greenhouse gases we individually produce; determines the impact our activities have on the environmentCarbon Footprint: a measure of all the greenhouse gases we individually produce; determines the impact our activities have on the environment What’s your carbon footprint? TAKE THE CARBON QUIZ AND FIND OUT!What’s your carbon footprint? TAKE THE CARBON QUIZ AND FIND OUT!

Think about it… In the summer, why does the inside of a car get very hot when it is sitting in the sun? The heat from the sun goes into the car. The windows on the car trap the heat inside. This makes the inside of the car heat up

GREENHOUSE EFFECT When incoming solar radiation (heat) is absorbed by gases in the atmosphere. Without the atmosphere, Earth would be as cold as space!!!! (Just like the windows in a car trap heat, the gasses in the atmosphere trap heat.)

GREENHOUSE EFFECT What traps the heat? Water vapor (H 2 O) Carbon dioxide (CO 2 ) Nitrous oxide (N 2 O) Methane (CH 4 ) These are called “greenhouse gases.” The more greenhouse gases in the troposphere, the warmer our planet gets.

GREENHOUSE EFFECT Greenhouse gases Greenhouse gas Where does it come from? How good is it at trapping heat? (global warming potential) Carbon dioxide (CO 2 ) Methane (CH 4 ) Nitrous oxide (N 2 O)

CO 2 has a global warming potential of only “1,” but it is the most abundant. Carbon dioxide is the most important greenhouse gas Global warming potential = how good a gas is at trapping heat. GREENHOUSE EFFECT Carbon dioxide comes from burning fossil fuels

CO 2 is at its highest atmospheric level in at least 400,00 years. Living organisms that once held carbon are being deforested. GREENHOUSE EFFECT Cutting down trees decreases the amount of CO 2 removed from the atmosphere

GREENHOUSE EFFECT Methane is the second most important greenhouse gas. 14% of greenhouse gases come form cow burps & some “flatulence” Methane also comes from fossil fuel production and waste disposal Methane has a global warming potential of “23.”

GREENHOUSE EFFECT Nitrous Oxide (laughing gas) One source is feedlots (the place the cows are kept before slaughter). Nitrous oxide is also released from chemical manufacturing plants and from automobiles. It can also be released from nitrogen fertilizers used on farms. Nitrous oxide has a global warming potential of “296.”

CO2 Nitrous oxide methane water vapor

Temperature (Northern Hemisphere) CO 2 Concentrations 1000 Years of CO 2 and Global Warming Degree Celsius Increase Parts Per Million Year

GLOBAL WARMING We’re seeing increased global temperatures as a result of increased greenhouse gasses 18

Effects of Global Climate Change on Our Environment Overall warmer average global temperatures Changes in weather Glaciers melting Rising Ocean Levels Sea ice melting Polar bears dying out  signs.html 19

What’s our class’s average Carbon Footprint and what does this mean? 1.Total Carbon Footprint for an individual in Somalia – 9 points (probably even less) 2.Total Carbon Footprint for Mr. Houtz– ____ points 3.The right way to find out your carbon footprint is with lbs., but we are using a point system… alculators/ 20

What’s being done now to reduce our emissions? Solar PowerWind PowerFuel-Efficiency

Simple Things To Do Turn off your computer or the TV when you’re not using it. Take shorter showers. Heating water uses energy. Keep rooms cool by closing the blinds, shades, or curtains. Turn off the lights when you leave a room. Use compact fluorescent bulbs.

Student Survey Please fill out the survey honestly and completely by circling the appropriate number This will help our class become a better learning environment in the future! This is anonymous, so you do not have to include your name or any information beyond circling your honest opinion and behavior in the classroom 23

1. What is responsible for trapping some radiation (heat) and keeping it on the Earth, much like the windows on a car trap in heat? a.Gravityc. Global Warming b.Nitrogen and Oxygen d. Greenhouse gases 2. Which of the following are examples of greenhouse gases? a.Hydrogen c. Carbon Dioxide b.Oxygend. nitrogen 3. Which of the following has caused the greatest increase in global warming? a. Burning of fossil fuels such as coal, gas, and oil b. Increases in nitrogen and oxygen in the atmosphere c. People breathing out d. Turning lights off EXIT TICKET (1-6)

4. Which of the following is a likely effect of global warming? a. Glaciers will increase in sizec. Ocean levels will rise b. More trees will growd. Ocean levels will decrease 5. The burning of fossil fuels is causing an Increase in the following: a. Atmospheric nitrogen b. Atmospheric carbon dioxide c. Atmospheric oxygen d. Atmospheric phosphate 6. The graph above shows the change in carbon dioxide concentration in Earth’s atmosphere from 1960 to The most likely cause of the overall change in the level of carbon dioxide from 1960 to 1990 is an increase in the: a. number of violent storms c. number of volcanic eruptions b. use of nuclear power d. use of fossil fuels