1. Encyclopædia Britannica. (2020). Greenhouse effect. Retrieved May 29, 2020, from https://www.britannica.com/science/greenhouse-effect
2. EPA. (2017, February 14). Understanding global warming potentials. United States Environmental Protection Agency. Retrieved from https://www.epa.gov/ghgemissions/understanding-global-warming-potentials
3. Gedzelman, S. D. (2016). Is global warming good, or was Arrhenius erroneous? Weatherwise, 70(1), 30–39. https://doi.org/10.1080/00431672.2017.1248744.
4. IPCC. (2018). Global warming of 1.5°C. In V. Masson-Delmotte, P. Zhai, H.-O. Pörtner, D. Roberts, J. Skea, P. Shukla, … T. Waterfield (Eds.), An IPCC special report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change. Geneva: Intergovernmental Panel on Climate Change.
5. Karl, T. R., & Trenberth, K. E. (2003). Modern global climate change. Science, 302(5651), 1719–1723. https://doi.org/10.1126/science.1090228.