Economics of installing Solar PV panels: is it worth it to the individual? part of Activities
Martin Walter, University of Colorado at Boulder
We show that it is economical for an individual to install solar photovoltaic panels in Denver, Colorado; and this is a sustainable strategy for society at large.

ELIMINATING TRAYS IN THE CAFETERIA: BENEFITS TO THE PLANET AND TO ECONOMIC COSTS part of Activities
Dianne Marquart
In this activity, students will investigate the economic and environmental benefits of eliminating food trays in the cafeteria at their college.

Biking vs Driving part of Activities
Deirdre Smeltzer, Eastern Mennonite University
How much difference would biking to work one day per week make?

Modeling: (1) Revenue Neutral Carbon Taxes; (2) Accelerated atmospheric C02 concentrations part of Activities
Martin Walter, University of Colorado at Boulder
Design a revenue neutral carbon tax and a plan for implementation; together with a model for what happens if we do not institute such a tax-system.

Bakken Oil From Shale, Greenhouse Gas Emissions, and Global Oil Economics part of Activities
Robert McConnell, University of Mary Washington
Students work with oil production data to assess the environmental impact, and economic controls, of oil production and consumption.

How much energy do you save by doubling insulation? part of Activities
Joseph Skufca, Clarkson University
Students will be provided the governing equation for steady state heat transfer across a surface. They will use that equation to explore the effect of changing the insulation value on the amount of energy used.

Replacing Household Appliances: Refrigerator part of Activities
Krys Stave, University of Nevada-Las Vegas
In this problem, students compare the energy use of their existing refrigerator with a new refrigerator.