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Life Sciences
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English (U.S.)
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Topic:

Phosphorus Crisis, Nitrogen Fertilizers, and Planetary Boundaries

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Directions: Discuss the following prompts with your group during class. Each week’s Discussion Leader will keep the conversation focused on the prompts and submit a summary of the discussion on behalf of all group members; all group members will serve as a Leader at least once over the semester. The Leader may consider drafting the summaries together with the group to ensure detail and accuracy, and/or taking extra time after class to edit or refine responses before submitting. 
Grading Criteria: Reading Discussions will be graded on:
Detail of group responses, including - length of response (approx. 2-3 paragraphs to summarize the conversation), specific examples from the source material(s), personal examples from group members, examples from additional sources, connections with lectures and other course materials, etc.
Credit given to sources, including - mention of which text/source is being referred to in examples, mention of group members’ unique contributions (ie: who said what), identifying when additional research outside of the assigned materials is used, etc.
Thoughtful reflection, including - critical consideration of the text, outstanding questions the group has that may require followup, reviewing the strengths, weaknesses, opportunities, and challenges of a proposed solution, etc
WEEK 3 READING DISCUSSION PROMPTS
Group Members:
Discussion Leader:
What’s something that surprised you about the phosphorus crisis? Why was this surprising?
What’s something that surprised you about nitrogen fertilizers? Why was this surprising?
Which of the planetary boundaries was most interesting to you? What did you find most interesting?

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Your Name
Subject and Section
Professor’s Name
September 18, 2023
Week 3 Reading Discussion Summary
Group Members: Member 1, Member 2, Member 3, Member 4
Discussion Leader: Member 2
1. Insights on the Phosphorus Crisis
The group collectively expressed astonishment regarding the sustainability concerns surrounding phosphorus. The disparity in the availability and sustainability of potassium and phosphorus, both pivotal for agriculture, was a revelation. One member was particularly struck by how phosphorus has been underscored as a significant sustainability issue of our era. Another member highlighted the geopolitical undertones associated with phosphorus, especially with a single nation controlling a significant portion of its global reserves. A personal touch was introduced when a member brought up their family's farming practices, discussing how they utilized fertilizers without delving deep into their phosphorus content or the impending sustainability concerns.
2. Discoveries on Nitrogen Fertilizers
While the exact source material on nitrogen fertilizers was not the focus of our previous reading, the group pooled prior knowledge and course content to drive this discussion. One member reminisced about the wonder of extracting nitrogen directly from the air and its significant role in agriculture. Another member highlighted the environmental consequences of nitrogen fertilizer overuse, pointing towards its contribution to aquatic dead zones. Drawing from an external source, a member elaborated on the Haber-Bosch process and its pivotal role in changing the landscape of nitrogen fixation, subsequently shaping modern agriculture and influencing global population dynamics.
3. Dive into Planetary Boundaries
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