Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Identify significant threats to biodiversityExplain the effects of habitat loss, exotic species, and hunting on biodiversityIdentify the early and predicted effects of climate change on biodiversity

Why are we overfishing the oceans? Why are we cutting trees faster than they're growing? Why did the Easter Islanders resort to cannibalism? And how did an economics professor dad stop his teenage sons from wasting his whole paycheck on soda pop? It turns out that all of these are examples of the Tragedy of the Commons. This economic theory explains why, when a resource is collectively owned, there is no incentive to use it sustainably. This explains why many natural resources are depleted, even though that makes everyone worse off.

In both macroeconomics and microeconomics principles courses, economists teach the virtue of markets as an allocative mechanism. But markets sometimes fail. This example allows students to simulate the market failure associated with a common property resource, a salmon fishery, and evaluate ways to control fishing. The simulation also shows the distributional results of different allocative mechanisms. The simulation was developed by Paul Romer at Stanford University and is available on the Aplia web site.

This course examines the interconnections of international politics and climate change. Beginning with an analysis of the strategic and environmental legacies of the 20th Century, it explores the politicization of the natural environment, the role of science in this process, and the gradual shifts in political concerns to incorporate “nature”. Two general thrusts of climate-politics connections are pursued, namely those related to (a) conflict – focusing on threats to security due to environmental dislocations and (b) cooperation – focusing on the politics of international treaties that have contributed to emergent processes for global accord in response to evidence of climate change. The course concludes by addressing the question of: “What Next?”

This course examines the interconnections of international politics and climate change. Beginning with an analysis of the strategic and environmental legacies of the 20th Century, it explores the politicization of the natural environment, the role of science in this process, and the gradual shifts in political concerns to incorporate “nature”. Two general thrusts of climate-politics connections are pursued, namely those related to (a) conflict – focusing on threats to security due to environmental dislocations and (b) cooperation – focusing on the politics of international treaties that have contributed to emergent processes for global accord in response to evidence of climate change. The course concludes by addressing the question of: “What Next?”

Is private property just? In this lecture, Professor Chris Feiman of the College of William and Mary presents some of the major philosophical challenges to private property.

Simulating the Tragedy of Commons illustrates for students to how sustaining our natural resources requires conservation and the cooperative use of those resources.

People living together must find some way to preserve common resources. Unfortunately, there are strong incentives for people to exploit these resources when they are held in common by everyone. Professor Sean Mullholland of Stonehill College explains what causes this problem, known as tragedy of the commons, and potential solutions.

This lesson introduces students to the “Tragedy of the Commons,” an extended metaphor for problems of shared environmental or man-made resources that are overused and eventually depleted. In this metaphor, shared resources are compared to a common grazing pasture, or “commons,” on which any dairy farmer can graze as many cows as he/she wishes. If too many cows are added to the commons, they will overeat the grass in the pasture and the shared resource will become depleted – a disadvantage to everyone. In this lesson, students will be inspired to think about possible solutions to this problem. To get there, they will use basic math to frame the problem and will discover how useful this can be in considering consequences of various actions. Most importantly, they will become comfortable with the concept of problems of shared resources – and will learn to recognize, and seek out, examples all around them. An exposure to algebra 1 and basic functions is the only math prerequisite necessary. The lesson will take around 50 minutes to complete and the required materials for this lesson are paper and pens or pencils, as well as some sort of prize to provide the winning team with in the final activity. For all five activities, students are asked to work in groups of 4, but groups of 3 or 5 would also be okay. Students will work with their groups to discuss the logic behind the tragedy of the commons, to consider some options for preventing this tragedy and to examine examples of problems of shared resources that are relevant to them. They will also come up with functions that fit behavior described in the video, and be asked to think about the behavior of functions provided in the video and accompanying materials.