CIRCA, Connecticut Institute for Resilience and Climate Adaptation (CIRCA) Connecticut Physical Climate Science Assessment Report (PCSAR): Observed Trends and Projections of Temperature and Precipitation.  Seth, Anji et al,, 2019.
https://circa.uconn.edu/wp-content/uploads/sites/1618/2019/11/CTPCSAR-Aug2019.pdf
The Connecticut standard for climate change science.

Hazen, Robert M., Symphony in C: Carbon and the Evolution of (Almost) Everything. New York: Norton, 2019.
A good introduction on the fundamentals of how the Earth works to create its climates, especially with respect to the carbon budget.

Intergovernmental Panel on Climate Change (IPCC), AR6 Synthesis Report: Climate Change, 2023.
https://www.ipcc.ch/report/sixth-assessment-report-cycle/
The global standard for climate change science.

Marshak, Stephen, Essentials of Geology, 7th Edition. New York: Norton, 2023
The textbook used by introductory science students at UConn.

Schwartz, Mark D., (Editor), Phenology: An Integrative Environmental Science. 2nd edition. New York: Springer, 2013.
A solid textbook on how climate relates to natural phenomenon, especially ecosystems.

Thorson, Robert M. (coordinator), “Ancient Worlds,” The Stone Pavilion Project, Department of Earth Sciences, UConn
https://earthsciences.uconn.edu/stone_pavilion_learn_more-ancient-worlds/ 
Portion of website describing the climate and environmental changes indicated by the specimen stone collection within the Stone Pavilion. 

Thunberg, Greta (Editor), The Climate Book.  New York: Penguin, 2023.
A 446-page volume of short papers on every subject related to climate change by global experts.  This book is used in Thorson’s first-year honors seminar titled Climate Underground.

USGCRP, Climate Science Special Report: Fourth National Climate Assessment, Volume I. Wuebbles, D.J., et al, (eds.)]. U.S. Global Change Research Program, Washington, DC, USA, 470 pp. 2017.
https://science2017.globalchange.gov/
The national standard for climate change science.