Climate Justice, Life Expectancy, and Gender Disparities in Intermediate Algebra
Tatiana Mihaylova, Bellevue Community College
After an introduction to climate justice and life expectancy, students complete a two-part project. For the first part of the project, students use life expectancy data and plots using the Cartesian coordinate system to make conclusions about the impact of climate change on health and longevity and to explore gender differences. For the second part of the project, students continue to practice math skills, and also practice math communication and build their math literacy, by engaging civically through conversation about the first part of their project, as well as how they can take action to support gender equity through family planning and education for women and girls as a way to address climate change.

Exploring Sea Level Rise in Algebra and Pre-Calculus: Learning About Affected Communities, Creating Mathematical Models, and Practicing Mathematical Communication Skills
Mathi Radhakrishnan, Bellevue Community College
Students begin this activity by learning how communities in Bangladesh are affected by melting glaciers and sea level rise, as well as why these phenomena are happening as a result of global climate change. They complete a modeling activity by collecting sea level height data from an interactive map, using linear regression to fit a mathematical model to the data, and reflecting on the accuracy of their model, as well as climate change models in general, by doing calculations with their regression equation. The activity ends when they present their models and have a conversation, with a person who is not a mathematician or familiar with mathematical models, about how models are sometimes misused to create an illusion of uncertainty about humankind's contribution to climate change.

Clothes Washers Life Cycle- Cost and Environmental Performance
Christopher Quarles and Miguel Hernandez, Everett Community College
Students in math and business classes work together in groups to evaluate and compare cost and environmental performance of different clothes washers.

Modeling Atmospheric CO2 Data
John B. VanLeer, Cascadia Community College
In this activity, students will use actual CO2 data from the Mauna Loa Observatory in Hawaii to create their own "Keeling Curve"; conduct an analysis of the data; and, attempt to match it to a mathematical function. They will then use the function to predict increases in CO2, both historical and future.

Sound Science
Peg Balachowski and Pamela Pape-Lindstrom, Everett Community College
An activity for a math/biology linked learning community in which students will collect, organize and analyze data related to the health of Puget Sound; experience the design of experiments in the sciences; apply mathematics to real biological issues that affect their lives; and develop an awareness of the personal and professional usefulness of mathematics, biology and modeling. Statistic students will act as consultants to the biology students and Biology students will in turn act as software analysts to help analyze trends as models are created.

How Many Plants Make a Future? The Carbon Dioxide Challenge
Rus Higley, Highline Community College Marine Science and Technology Center, Vanessa Hunt and Timothy Sorey, Central Washington University
This activity focuses on the role of photosynthesis in a sustainable future. Students explore the effect of photosynthesis and respiration in a 'closed systems' containing plankton, marine plants, and fish. By calculating carbon dioxide uptake and production in these systems, they predict a plant: animal ratio sufficient to maintain a system in carbon dioxide 'balance' for one hour.

Your Environmental Impact
Eric Baer and Mayra Hernandez, Highline Community College
The following homework assignments are designed to build understanding of personal water use, sewage, waste generation and disposal, pollution sources and impacts, and energy use and costs.

Developing a Transportation Survey to Estimate Gasoline Use by Campus Commuters
Steven Bogart, Shoreline Community College
Through this activity, students in a liberal arts mathematics class will develop experience with real-world statistical concepts through the context of sustainability: estimation, survey writing, sampling techniques, and data analysis.

Sustainability and Changing Rates of Change
Christopher Coughenour, The Evergreen State College
To understand sustainability, students must understand rates of change. This activity includes a primer on basic rates concepts and an exercise that motivates critical thinking about rates of change and sustainability with an analysis of historical petroleum production rates data from the United States and the world.

Sally Salivates Seashells by the Seashore- Ocean Acidification and the Effect on Sea Shells
Rus Higley, Highline Community College, and Vanessa Hunt, Central Washington University
In this lesson we review "Acids and Bases" taught in a previous lesson and, through a scientific method, will look at the impact of an acid on different types of shells. Students will reinforce previous learning of scientific principles including acids/basis and will develop a real experiment using the scientific method.