fix(vol2): update canonical reference URLs and resolve comment citekey

Author: profvjreddi

books/vol2/sustainable_ai/sustainable_ai.qmd

@@ -471,7 +471,7 @@ That geographic concentration creates environmental-justice risks that align wit
 # │
 # │ Goal: Quantify the exponential scaling of AI compute demand (2012-2019).
 # │ Show: ~350,000x increase in compute requirements.
-# │ How: Historical data from @schwartz2020green.
+# │ How: Historical data from @schwartz2020.
 # │
 # └─────────────────────────────────────────────────────────────────────────────
 import math

publishing/quarto/contents/references.bib

@@ -850,9 +850,7 @@ @misc{awsS3GlacierRetrieval
   title = {Understanding Archive Retrieval Options},
   author = {{Amazon Web Services}},
   year = {2026},
-  url = {
-    https://docs.aws.amazon.com/AmazonS3/latest/userguide/restoring-objects-retrieval-options.html
-  },
+  url = {https://docs.aws.amazon.com/AmazonS3/latest/userguide/restoring-objects.html},
   note = {Accessed: 2026-06-14},
   howpublished = {{Amazon S3} User Guide},
 }
@@ -2491,7 +2489,7 @@ @article{Cerebras2021
   year = {2021},
   journal = {Cerebras Technical Paper},
   volume = {2021},
-  url = {https://cerebras.ai/wp-content/uploads/2021/04/Cerebras-CS-2-Whitepaper.pdf},
+  url = {https://cerebras.ai/product-chip/},
 }
 
 @misc{cerebras2024s1,
@@ -4517,9 +4515,7 @@ @misc{ethernetAlliance2025roadmap
   title = {2025 {Ethernet} Roadmap},
   author = {{Ethernet Alliance}},
   year = {2025},
-  url = {
-    https://ethernetalliance.org/wp-content/uploads/2025/03/2025-Ethernet-Roadmap-2-Sided-Web-03-17-2025.pdf
-  },
+  url = {https://ethernetalliance.org/roadmap/},
   note = {Accessed: 2026-06-14},
   howpublished = {Ethernet Alliance roadmap},
 }

publishing/quarto/contents/vol2/sustainable_ai/sustainable_ai.qmd

@@ -469,7 +469,7 @@ That geographic concentration creates environmental-justice risks that align wit
 # │
 # │ Goal: Quantify the exponential scaling of AI compute demand (2012-2019).
 # │ Show: ~350,000x increase in compute requirements.
-# │ How: Historical data from @schwartz2020green.
+# │ How: Historical data from @schwartz2020.
 # │
 # └─────────────────────────────────────────────────────────────────────────────
 import math