# EPD 639: Plastics Recycling and Sustainability | UW–Madison [View on UW Courses](https://uwcourses.com/courses/EPD_639) ## Dataset ### revision e243353dcb7d79b7247ced91d69443ef4c2a6349 ### repository twangodev/uwcourses ### schema version 6 ### importer version 7 ### projection id 94468b7d4154126ca413937bb4738a6d21e0c2277f6fa397a6078ad80a32384f ### observed at 2026-09-07T15:55:43.033547+00:00 ### built at 2026-09-10T23:19:01.870283+00:00 ### courses 8951 ### current instructors 5754 ### limited false ### terms * 1272 * 1264 * 1262 * 1254 * 1252 * 1244 * 1242 * 1234 * 1232 * 1224 * 1222 * 1212 * 1204 * 1202 * 1194 * 1192 * 1184 * 1182 * 1174 * 1172 * 1164 * 1162 * 1154 * 1152 * 1144 * 1142 * 1134 * 1132 * 1124 * 1122 * 1114 * 1112 * 1104 * 1102 * 1094 * 1092 * 1084 * 1082 * 1074 * 1072 ### term 1272 ### departments | subject | count | | --------- | ----- | | AAE | 90 | | ABT | 20 | | ACCTIS | 36 | | ACTSCI | 14 | | AFAERO | 10 | | AFRICAN | 87 | | AFROAMER | 71 | | AGROECOL | 21 | | AMERIND | 53 | | ANAT\&PHY | 7 | | ANATOMY | 2 | | ANESTHES | 8 | | ANSCI | 57 | | ANTHRO | 95 | | ART | 125 | | ARTED | 10 | | ARTHIST | 121 | | ASIALANG | 129 | | ASIAN | 109 | | ASIANAM | 28 | | ASTRON | 38 | | ATMOCN | 69 | | BIOCHEM | 51 | | BIOCORE | 10 | | BIOLOGY | 14 | | BIOMDSCI | 18 | | BME | 66 | | BMI | 41 | | BMOLCHEM | 10 | | BOTANY | 69 | | BSE | 44 | | C\&ESOC | 73 | | CBE | 48 | | CHEM | 101 | | CHICLA | 52 | | CIVENGR | 133 | | CLASSICS | 47 | | CNP | 10 | | CNSRSCI | 50 | | COMARTS | 137 | | COMPBIO | 15 | | COMPLIT | 11 | | COMPSCI | 138 | | COUNPSY | 78 | | CRB | 19 | | CS\&D | 71 | | CSCS | 40 | | CURRIC | 193 | | DANCE | 93 | | DERM | 8 | | DS | 88 | | DYSCI | 35 | | ECE | 155 | | ECON | 145 | | EDPOL | 114 | | EDPSYCH | 97 | | ELPA | 70 | | EMA | 53 | | EMERMED | 17 | | ENGL | 206 | | ENTOM | 40 | | ENVIRST | 148 | | EP | 15 | | EPD | 67 | | ESL | 16 | | F\&WECOL | 60 | | FAMMED | 22 | | FINANCE | 50 | | FOLKLORE | 40 | | FOODSCI | 43 | | FRENCH | 63 | | GEN\&WS | 145 | | GENBUS | 72 | | GENECSLR | 17 | | GENETICS | 60 | | GEOG | 113 | | GEOSCI | 83 | | GERMAN | 82 | | GLE | 48 | | GNS | 38 | | GREEK | 27 | | HDFS | 41 | | HEBR-BIB | 13 | | HEBR-MOD | 10 | | HISTORY | 233 | | HISTSCI | 56 | | HONCOL | 13 | | ILS | 43 | | INFOSYS | 9 | | INTEGART | 7 | | INTEGSCI | 22 | | INTER-AG | 18 | | INTER-HE | 11 | | INTER-LS | 22 | | INTEREGR | 16 | | INTLBUS | 21 | | INTLST | 50 | | ISYE | 83 | | ITALIAN | 53 | | JEWISH | 56 | | JOURN | 88 | | KINES | 128 | | LACIS | 26 | | LANDARC | 61 | | LATIN | 24 | | LAW | 120 | | LEGALST | 48 | | LINGUIS | 35 | | LIS | 89 | | LITTRANS | 78 | | LSC | 52 | | M\&ENVTOX | 7 | | MARKETNG | 62 | | MATH | 153 | | MDGENET | 8 | | ME | 130 | | MEDHIST | 43 | | MEDICINE | 60 | | MEDIEVAL | 32 | | MEDPHYS | 39 | | MEDSC-M | 29 | | MEDSC-V | 41 | | MHR | 68 | | MICROBIO | 45 | | MILSCI | 16 | | MM\&I | 22 | | MOLBIOL | 6 | | MS\&E | 59 | | MUSIC | 165 | | MUSPERF | 126 | | NAVSCI | 20 | | NE | 44 | | NEURODPT | 11 | | NEUROL | 7 | | NEURSURG | 4 | | NTP | 11 | | NURSING | 111 | | NUTRSCI | 65 | | OBS\&GYN | 18 | | OCCTHER | 39 | | ONCOLOGY | 14 | | OPHTHALM | 5 | | OTM | 43 | | PATH | 34 | | PATH-BIO | 29 | | PEDIAT | 26 | | PHARMACY | 31 | | PHILOS | 77 | | PHMCOL-M | 11 | | PHMPRAC | 45 | | PHMSCI | 60 | | PHYASST | 37 | | PHYSICS | 88 | | PHYSIOL | 3 | | PHYTHER | 37 | | PLANTSCI | 52 | | PLPATH | 35 | | POLISCI | 192 | | POPHLTH | 58 | | PORTUG | 33 | | PSYCH | 101 | | PSYCHIAT | 22 | | PUBAFFR | 54 | | PUBLHLTH | 23 | | RADIOL | 11 | | REALEST | 41 | | RELIGST | 90 | | RHABMED | 9 | | RMI | 24 | | RP\&SE | 102 | | S\&APHM | 17 | | SCANDST | 73 | | SLAVIC | 89 | | SOC | 149 | | SOCWORK | 87 | | SOILSCI | 46 | | SPANISH | 83 | | SRMED | 21 | | STAT | 94 | | STDYABRD | 52 | | STS | 8 | | SURGERY | 25 | | SURGSCI | 33 | | THEATRE | 91 | | URBRPL | 60 | | UROLOGY | 5 | | ZOOLOGY | 89 | ## course ### run id 20260907T155543-ce3781c4 ### semester 1272 ### observed at 2026-09-07 15:55:43.033547+00:00 ### record version id c3eb2bbb7e0e81b61ef07e817b20842079b2f6002ffbb8f03c2c780804fee061 ### course id EPD 639 ### course uid course\_02b84ccf31d5449d1708bd49 ### catalog version id 54cc8cce877708ee216b95e374d196fb9d298fce180f3068f3c12045a1a2fb3d ### course number 639 ### subjects * EPD ### title PLASTICS RECYCLING AND SUSTAINABILITY ### description Examine sustainability and recycling practices for plastics and polymeric materials, including textiles. Analyze environmental impacts and plastic waste using life cycle assessment. Explore traditional and emerging recycling technologies, along with bio-based and degradable plastics. Critically evaluate media coverage to identify "greenwashing" and improve understanding of sustainability issues. ### requirements text E P D 634or636 ### credit offering ids None recorded. ### llm job id enrich-8b774950c2b6adfdc46d1b82 ### llm output id a5ebde5a79b78287bd7b3ae60d62943797dd9b68ae1cb007d5cdb7b8d858096c ### llm model nvidia/Qwen3.6-35B-A3B-NVFP4 ### llm model revision 1355db6a052410cfd62085d94b58866fd0f2c3c5 ### llm task version 14 ### llm search status valid ### llm summary Examines plastics recycling, sustainability practices, and life cycle assessment of environmental impacts. ### llm topics * Plastics and polymeric materials recycling * Environmental impacts and life cycle assessment * Bio-based and degradable plastics * Greenwashing identification ### llm skills * Life cycle assessment of plastic waste * Critical evaluation of sustainability media * Analysis of recycling technologies ### llm assumed background * Introductory general chemistry and thermodynamics * Polymer chemistry and physics fundamentals ### llm search phrases * plastics recycling sustainability * polymer waste life cycle assessment * greenwashing evaluation * bio-based plastics ### llm requirements status valid ### llm student summary status valid ### llm experience status insufficient\_evidence ### catalog variants None recorded. ### student summary #### context hash 63be83633f35fa899e7fae2cb1b1d0efbb771a22a66975c34095589be7fb99c4 #### course id EPD 639 #### current instructors None recorded. #### difficulty workload None recorded. #### errors None recorded. #### historical context None recorded. #### message No course-specific reviews available #### offered false #### profile hash 5cb4dabf887cdbcd8c00d5a1312e10828b95c63f30bc3ea76aea199565390d02 #### quick take Recent recorded grades — Spring 2024: 3.92 GPA, 91.7% A/AB (n=12 letter grades); Spring 2025: 3.97 GPA, 100.0% A/AB (n=15 letter grades); Spring 2026: 4.00 GPA, 100.0% A/AB (n=11 letter grades). ```json { "citations": [ { "course_id": "EPD 639", "run_id": "20260907T155543-ce3781c4", "source_record": { "entity_id": "e9d97eca-2d40-3c35-8eaf-bb18b393530a", "file": "tables/observations.parquet", "kind": "grades", "source": "madgrades" }, "table": "grades_latest", "term_id": "1244", "type": "grade" }, { "course_id": "EPD 639", "run_id": "20260907T155543-ce3781c4", "source_record": { "entity_id": "e9d97eca-2d40-3c35-8eaf-bb18b393530a", "file": "tables/observations.parquet", "kind": "grades", "source": "madgrades" }, "table": "grades_latest", "term_id": "1254", "type": "grade" }, { "course_id": "EPD 639", "run_id": "20260907T155543-ce3781c4", "source_record": { "entity_id": "e9d97eca-2d40-3c35-8eaf-bb18b393530a", "file": "tables/observations.parquet", "kind": "grades", "source": "madgrades" }, "table": "grades_latest", "term_id": "1264", "type": "grade" } ] } ``` #### student experience None recorded. #### task hash 74fb0997943e888960bbc9e47db8c4fd12e4292d55c20509d8d89db6a9910f68 #### teaching history None recorded. #### term id 1272 #### term name 2026 Fall #### version 2 ### requirements #### nodes ```json [ { "children": [ "n1", "n2" ], "condition": null, "course": null, "evidence": "E P D 634or636", "id": "n0", "kind": "any" }, { "children": [], "condition": null, "course": { "course_number": 634, "minimum_grade": null, "subjects": [ "EPD" ], "timing": "prior" }, "evidence": "E P D 634", "id": "n1", "kind": "course" }, { "children": [], "condition": null, "course": { "course_number": 636, "minimum_grade": null, "subjects": [ "EPD" ], "timing": "prior" }, "evidence": "636", "id": "n2", "kind": "course" } ] ``` #### notes None recorded. #### root n0 #### status parsed ### instructors None recorded. ### offerings None recorded. ### sections None recorded. ### grade instructors ```json [ { "instructor_uid": "instructor_0111f66edba56bfeddd8114f", "source": "madgrades", "source_instructor_id": "6369075", "identity_basis": "source_id", "identity_status": "source_identified", "name": "KRISTOFFER STOKES", "email": null, "first_observed_at": "2026-09-06 23:14:58.172943+00:00", "last_observed_at": "2026-09-07 15:55:43.033547+00:00", "grade_statistics": { "gpa": 3.967, "graded": 61, "counts": [ 58, 2, 1, 0, 0, 0, 0 ], "sections": 5 }, "instructor_url": "/instructors/KRISTOFFER_STOKES--instructor_0111f66edba56bfeddd8114f" }, { "instructor_uid": "instructor_ab12dfad3baa04459e20943d", "source": "madgrades", "source_instructor_id": "6243380", "identity_basis": "source_id", "identity_status": "source_identified", "name": "NICOLE ZACHARIA", "email": null, "first_observed_at": "2026-09-06 23:14:58.172943+00:00", "last_observed_at": "2026-09-07 15:55:43.033547+00:00", "grade_statistics": { "gpa": 3.75, "graded": 260, "counts": [ 173, 57, 22, 5, 2, 1, 0 ], "sections": 27 }, "instructor_url": "/instructors/NICOLE_ZACHARIA--instructor_ab12dfad3baa04459e20943d" } ] ``` ### grades ```json [ { "run_id": "20260907T155543-ce3781c4", "semester": "1272", "observed_at": "2026-09-07 15:55:43.033547+00:00", "course_id": "EPD 639", "course_uid": "course_02b84ccf31d5449d1708bd49", "term_id": "1224", "term_name": "Spring 2022", "instructors": [ "Kristoffer Stokes", "Nicole Zacharia" ], "a": 7, "ab": 1, "b": 0, "bc": 0, "c": 0, "d": 0, "f": 0, "satisfactory": 1, "unsatisfactory": 0, "credit": 0, "no_credit": 0, "passed": 0, "incomplete": 0, "no_work": 0, "not_reported": 0, "other": 0, "total": 9, "source_aliases": [ "EPD 639" ] }, { "run_id": "20260907T155543-ce3781c4", "semester": "1272", "observed_at": "2026-09-07 15:55:43.033547+00:00", "course_id": "EPD 639", "course_uid": "course_02b84ccf31d5449d1708bd49", "term_id": "1234", "term_name": "Spring 2023", "instructors": [ "Kristoffer Stokes", "Nicole Zacharia" ], "a": 15, "ab": 0, "b": 0, "bc": 0, "c": 0, "d": 0, "f": 0, "satisfactory": 0, "unsatisfactory": 0, "credit": 0, "no_credit": 0, "passed": 0, "incomplete": 1, "no_work": 0, "not_reported": 0, "other": 0, "total": 16, "source_aliases": [ "EPD 639" ] }, { "run_id": "20260907T155543-ce3781c4", "semester": "1272", "observed_at": "2026-09-07 15:55:43.033547+00:00", "course_id": "EPD 639", "course_uid": "course_02b84ccf31d5449d1708bd49", "term_id": "1244", "term_name": "Spring 2024", "instructors": [ "Kristoffer Stokes", "Nicole Zacharia" ], "a": 11, "ab": 0, "b": 1, "bc": 0, "c": 0, "d": 0, "f": 0, "satisfactory": 0, "unsatisfactory": 0, "credit": 0, "no_credit": 0, "passed": 0, "incomplete": 0, "no_work": 0, "not_reported": 0, "other": 0, "total": 12, "source_aliases": [ "EPD 639" ] }, { "run_id": "20260907T155543-ce3781c4", "semester": "1272", "observed_at": "2026-09-07 15:55:43.033547+00:00", "course_id": "EPD 639", "course_uid": "course_02b84ccf31d5449d1708bd49", "term_id": "1254", "term_name": "Spring 2025", "instructors": [ "Kristoffer Stokes", "Nicole Zacharia" ], "a": 14, "ab": 1, "b": 0, "bc": 0, "c": 0, "d": 0, "f": 0, "satisfactory": 0, "unsatisfactory": 0, "credit": 0, "no_credit": 0, "passed": 0, "incomplete": 0, "no_work": 0, "not_reported": 0, "other": 0, "total": 15, "source_aliases": [ "EPD 639" ] }, { "run_id": "20260907T155543-ce3781c4", "semester": "1272", "observed_at": "2026-09-07 15:55:43.033547+00:00", "course_id": "EPD 639", "course_uid": "course_02b84ccf31d5449d1708bd49", "term_id": "1264", "term_name": "Spring 2026", "instructors": [ "Kristoffer Stokes", "Nicole Zacharia" ], "a": 11, "ab": 0, "b": 0, "bc": 0, "c": 0, "d": 0, "f": 0, "satisfactory": 0, "unsatisfactory": 0, "credit": 0, "no_credit": 0, "passed": 0, "incomplete": 0, "no_work": 0, "not_reported": 0, "other": 0, "total": 11, "source_aliases": [ "EPD 639" ] } ] ``` ### statistics #### gpa 3.967 #### graded 61 #### counts * 58 * 2 * 1 * 0 * 0 * 0 * 0 ### grade conflicts None recorded. ### evidence #### history * [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/history/course\_02b84ccf31d5449d1708bd49-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/history/course_02b84ccf31d5449d1708bd49-0.json) #### traces * [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/traces/course\_02b84ccf31d5449d1708bd49-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/traces/course_02b84ccf31d5449d1708bd49-0.json) #### results * [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/results/course\_02b84ccf31d5449d1708bd49-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/results/course_02b84ccf31d5449d1708bd49-0.json) ### revision e243353dcb7d79b7247ced91d69443ef4c2a6349 ## context ### all #### term #### gpa 3.9672131147540983 #### count 61 #### university ##### size 2947 ##### gpa Percentile 87 ##### count Percentile 26 ##### median Count 113 ##### histogram | range | count | current | | ------- | ----- | ------- | | 0.0–0.4 | 0 | false | | 0.4–0.8 | 0 | false | | 0.8–1.2 | 0 | false | | 1.2–1.6 | 0 | false | | 1.6–2.0 | 0 | false | | 2.0–2.4 | 1 | false | | 2.4–2.8 | 11 | false | | 2.8–3.2 | 200 | false | | 3.2–3.6 | 728 | false | | 3.6–4.0 | 2007 | true | #### departments ```json [ { "subject": "EPD", "comparison": { "size": 15, "gpaPercentile": 100, "countPercentile": 43, "medianCount": 63, "histogram": [ { "range": "0.0–0.4", "count": 0, "current": false }, { "range": "0.4–0.8", "count": 0, "current": false }, { "range": "0.8–1.2", "count": 0, "current": false }, { "range": "1.2–1.6", "count": 0, "current": false }, { "range": "1.6–2.0", "count": 0, "current": false }, { "range": "2.0–2.4", "count": 0, "current": false }, { "range": "2.4–2.8", "count": 0, "current": false }, { "range": "2.8–3.2", "count": 0, "current": false }, { "range": "3.2–3.6", "count": 1, "current": false }, { "range": "3.6–4.0", "count": 14, "current": true } ] } } ] ``` ### terms #### 1224 ##### term 1224 ##### gpa 3.9375 ##### count 8 ##### departments | subject | comparison | | ------- | ---------- | | EPD | | #### 1234 ##### term 1234 ##### gpa 4 ##### count 15 ##### departments | subject | comparison | | ------- | ---------- | | EPD | | #### 1244 ##### term 1244 ##### gpa 3.9166666666666665 ##### count 12 ##### departments | subject | comparison | | ------- | ---------- | | EPD | | #### 1254 ##### term 1254 ##### gpa 3.966666666666667 ##### count 15 ##### departments | subject | comparison | | ------- | ---------- | | EPD | | #### 1264 ##### term 1264 ##### gpa 4 ##### count 11 ##### departments | subject | comparison | | ------- | ---------- | | EPD | | ### benchmarks #### all ##### school ###### size 2947 ###### gpa 3.684503227431485 ###### top Share 83.48969667841149 ###### count 113 ##### EPD ###### size 15 ###### gpa 3.818990306783588 ###### top Share 93.20091208701729 ###### count 63 #### terms ##### 1224 ###### school ###### size 1171 ###### gpa 3.5627882428500937 ###### top Share 76.37271640560496 ###### count 64 ##### 1234 ###### school ###### size 1188 ###### gpa 3.5799441677552393 ###### top Share 77.18256448537606 ###### count 65 ##### 1244 ###### school ###### size 1241 ###### gpa 3.5975573126929192 ###### top Share 78.29036874847135 ###### count 65 ##### 1254 ###### school ###### size 1289 ###### gpa 3.6126423469389106 ###### top Share 79.48050408754871 ###### count 66 ##### 1264 ###### school ###### size 1283 ###### gpa 3.6229729166451925 ###### top Share 80.13669149396227 ###### count 66 ## instructor Trends ```json [ { "uid": "instructor_0111f66edba56bfeddd8114f", "name": "KRISTOFFER STOKES", "count": 61, "terms": [ { "term": "1224", "count": 8, "sections": 1, "gpa": 3.9375 }, { "term": "1234", "count": 15, "sections": 1, "gpa": 4 }, { "term": "1244", "count": 12, "sections": 1, "gpa": 3.9166666666666665 }, { "term": "1254", "count": 15, "sections": 1, "gpa": 3.966666666666667 }, { "term": "1264", "count": 11, "sections": 1, "gpa": 4 } ] }, { "uid": "instructor_ab12dfad3baa04459e20943d", "name": "NICOLE ZACHARIA", "count": 61, "terms": [ { "term": "1224", "count": 8, "sections": 1, "gpa": 3.9375 }, { "term": "1234", "count": 15, "sections": 1, "gpa": 4 }, { "term": "1244", "count": 12, "sections": 1, "gpa": 3.9166666666666665 }, { "term": "1254", "count": 15, "sections": 1, "gpa": 3.966666666666667 }, { "term": "1264", "count": 11, "sections": 1, "gpa": 4 } ] } ] ``` ## following None recorded.