- Int. 0609-2015 (amended version), signed into law by Mayor de Blasio on January 5, 2016. Mandates identifying buildings appropriate for geothermal systems; takes into account the social cost of carbon in determining the cost-effectiveness of installing a geothermal system. 
- Int. 1159-2016 Requires a feasibility study of the costs of installing solar water heating and thermal energy systems on city-owned buildings, and mandates the installation of these systems when it’s cost-effective. 
- Int. 0478-2014 (amended version), signed into law by Mayor de Blasio on March 14, 2016. Mandates the Department of Citywide Administrative Services (DCAS) to identify the NYC-owned building rooftops with potential for installation of a photovoltaic system. 
- Int. 0739-2015 Creates a solar ombudsperson position within the NYC Department of Buildings. 
- Int. 0694-2015 Mandates increasing the number of electric-vehicle charging stations in open parking lots and parking garages. 
- Int. 0844-2015 The Department of Citywide Administrative Services must install solar canopies, if cost-effective, on all city-controlled parking lots; 50% or more of these parking spaces with solar canopies must support electric-vehicle charging stations. 
- Int. 1124-2016 (amended version), signed into law by Mayor de Blasio on December 6, 2016. Establishes a pilot program for the installation of electric-vehicle charging stations in publicly accessible locations. 
 See Res 0356-2014 People’s Climate March NYC: http://legistar.council.nyc.gov/LegislationDetail.aspx?ID=1853953&GUID=747A98F3-12D3-47FA-BF13-E14E1EA99A91&Options=&Search=
 See http://council.nyc.gov/press/2014/09/19/327 for City Council Speaker Melissa Mark-Viverito’s September 19, 2014 press release which provides detailed information on the Comprehensive Platform to Combat Climate Change. Prior to this platform, the City Council passed over 100 bills to promote sustainability in NYC.
 For the text of this bill, which was enacted in December 2014, see Int. 0378-2014: http://legistar.council.nyc.gov/LegislationDetail.aspx?ID=1812833&GUID=3AEAAFA1-C484-428C-83A7-12B07606D1B2&Options=ID|Text|&Search=0378-2014
 See http://www1.nyc.gov/office-of-the-mayor/news/451-14/mayor-de-blasio-commits-80-percent-reduction-greenhouse-gas-emissions-2050-starting-with#/0 for Mayor de Blasio’s September 21, 2014 press release. For the One City: Built to Last website, see: www.nyc.gov/builttolast One City: Built to Last includes a commitment to installing 100 MW of solar power on NYC-owned buildings. See: http://www1.nyc.gov/office-of-the-mayor/news/457-14/mayor-de-blasio-major-solar-investment-city-schools-key-component-new-green#/0
 See, http://www1.nyc.gov/office-of-the-mayor/news/257-15/mayor-de-blasio-releases-one-new-york-plan-strong-just-city#/0 for Mayor de Blasio’s Earth Day, April 22, 2015 press release on OneNYC and www.nyc.gov/onenyc for the OneNYC website.
 See http://www1.nyc.gov/office-of-the-mayor/news/478-15/de-blasio-administration-moves-power-100-percent-city-government-renewable-sources-of for Mayor de Blasio’s July 10, 2015 press release which notes that electricity for city-owned buildings costs NYC taxpayers between $600 and $650 million a year.
 See: Michael M. Grynbaum, “New York City Aims for Vast Electric Car Fleet by 2025,” New York Times, December 1, 2015 www.nytimes.com/2015/12/02/nyregion/new-york-city-aims-for-a-vast-electric-car-fleet-by-2025.html
 See: http://www1.nyc.gov/office-of-the-mayor/news/769-16/mayor-de-blasio-completion-3-000-solar-panels-the-brooklyn-navy-yard For an update on solar power installations in NYC, see: Kaya Laterman, “Is New York Ready for Solar Power?,” New York Times, September 30, 2016: https://www.nytimes.com/2016/10/02/realestate/is-new-york-ready-for-solar-power.html?_r=0
 For Int. 0609-2015, see: http://legistar.council.nyc.gov/LegislationDetail.aspx?ID=2119778&GUID=E12FA77F-832A-48CC-96B6-0231AB028D1C&Options=&Search= For an explanation of the social cost of carbon, see: Michael Greenstone and Cass R. Susskind, “Donald Trump Should Know This is What Climate Change Costs Us,” New York Times, December 15, 2016: https://www.nytimes.com/2016/12/15/opinion/donald-trump-should-know-this-is-what-climate-change-costs-us.html
 For Int. 1159-2016, see: http://legistar.council.nyc.gov/LegislationDetail.aspx?ID=2693990&GUID=D625FFCD-81C3-4673-9E26-A404983B9B55&Options=ID|Text|&Search= This bill also incorporates the social cost of carbon in determining cost-effectiveness.