BuildingScience.com -- Provides access to books, articles and papers on all aspects of building.
National Energy Codes--Building energy codes from the U.S. Department of Energy
Department of Energy--Provides technical reports and other documents created the Department of Energy. The GEB Technical Reports on Building might be helpful.
EPA: United States Environmental Protection Agency--The EPA develops and enforces regulations that span many environmental topics relating to human health and the environment.
NYSERDA-The New York State Energy Research and Development Authority, known as NYSERDA, promotes energy efficiency and the use of renewable energy sources.
Publications and Technical Reports—This is the landing page for NYSERDA publications. They are broken down into categories and have everything from reports to case studies.
This database has datasets related specifically to NYC including a report of tree density and location, water consumption, air quality, sea level rise, natural gas consumption by zip code, recycling rates, etc.
This database has datasets and reports related to NYS broadly. It includes interactive maps of community solar projects, alternative fuel stations in NY, reports of spill incidents of petroleum and other hazardous materials, and many other topics.