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:Define global climate changeSummarize the effects of the Industrial Revolution on global atmospheric carbon dioxide concentrationDescribe three natural factors affecting long-term global climateList two or more greenhouse gases and describe their role in the greenhouse effect
A two-day assignment focusing in the melting or Arctic sea ice and the increased global temperature. The lesson involves reading the text Decline in Arctic Sea Ice, reviewing video clips, in depth discussions, and independent research and writing.
With increasing public awareness of the multiple effects of global environmental change, the terms water, energy, and food crisis have become widely used in scientific and political debates on sustainable development and environmental policy. Although each of these crises has distinct drivers and consequences, providing sustainable supplies of water, energy, and food are deeply interrelated challenges and require a profound understanding of the political, socioeconomic, and cultural factors that have historically shaped these interrelations at a local and global scale.
Students take a closer look at cars and learn about some characteristics that affect their energy efficiency, including rolling resistance and the aerodynamics of shape and size. They come to see how vehicles are one example of a product in which engineers are making changes and improvements to gain greater efficiency and thus require less energy to operate.
Students learn about the advantages and disadvantages of the greenhouse effect. They construct their own miniature greenhouses and explore how their designs take advantage of heat transfer processes to create controlled environments. They record and graph measurements, comparing the greenhouse indoor and outdoor temperatures over time. Students are also introduced to global issues such as greenhouse gas emissions and their relationship to global warming.
In this project, you will explore a real-world problem, and then work through a series of steps to analyze that problem, research ways the problem could be solved, then propose a possible solution to that problem. Often, there are no specific right or wrong solutions, but sometimes one particular solution may be better than others. The key is making sure you fully understand the problem, have researched some possible solutions, and have proposed the solution that you can support with information / evidence.Begin by reading the problem statement in Step 1. Take the time to review all the information provided in the statement, including exploring the websites, videos and / or articles that are linked. Then work on steps 2 through 8 to complete this problem-based learning experience.
Students determine their carbon footprints by answering questions about their everyday lifestyle choices. Then they engineer plans to reduce them. Students learn about their personal impacts on global climate change and how they can help the environment.
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Dairy cows emit large amounts of the greenhouse gas methane due to microbial fermentation in their stomachs, which poses an environmental problem. It also decreases the cows’ growth efficiency, as some energy from feed is lost as methane. The supplement 3-nitrooxypropanol (3-NOP) can help reduce methane emission by inhibiting a methane-forming enzyme, but 3-NOP’s effects on the microbiome in the rumen (the stomach compartment where fermentation occurs) haven’t been investigated. It’s also unclear why hydrogen gas (H₂) accumulates less than expected when methane production is blocked by 3-NOP. To learn more, researchers recently characterized the rumen microbes in 3-NOP-supplemented dairy cows. 3-NOP reduced the abundance of Methanobrevibacter species, which make methane from carbon dioxide. To a lesser extent, it also reduced the abundance of Methanosphaera species, which make methane from methanol..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.