1. John Hopkins coronavirus resource center. Johns Hopkins University. https://coronavirus.jhu.edu.
2. Department of Health and Human Services. HHS proposes unprecedented regulatory reform through retrospective review. 4 Nov 2020. https://www.hhs.gov/about/news/2020/11/04/hhs-proposes-unprecedented-regulatory-reform-through-retrospective-review.html.
3. Statement by President Trump on the Paris Climate Accord . 1 Jun 2017. https://www.whitehouse.gov/briefings-statements/statement-president-trump-paris-climate-accord/.
4. Climate Crisis Town Hall with Joe Biden (D), presidential candidate. CNN. 4 Sep 2019. http://transcripts.cnn.com/TRANSCRIPTS/1909/04/se.05.html.
5. Viser M, Min Kim S, Linskey A. Biden plans immediate flurry of executive orders to reverse Trump policies. Washington Post. 7 Nov 2020. https://www.washingtonpost.com/politics/biden-first-executive-orders-measures/2020/11/07/9fb9c1d0-210b-11eb-b532-05c751cd5dc2_story.html.