• December 29 - Reinstein Woods - Learn to Cross-Country Ski
  • December 30 - Reinstein Woods - Under the Ice
  • December 31 - BCP Amendment App. - 272 4th Avenue Site (Brooklyn) Comment Deadline
  • December 31 - Brownfield App. - HMQ Site Restoration STEAM Center (Herkimer) Comment Deadline
  • December 31 - Proposed Cleanup - 28-90 Review Ave. Development Site (Queens) Comment Deadline
  • January 1 - In Effect: Expanded Polystyrene Foam Container and Polystyrene Loose Fill Ban
  • January 1 - Five Rivers: Community Science: New Year's Day Bird Count
  • January 1 - Reinstein Woods - First Day Hike
  • January 1 - Five Rivers: Adventure NY: First Day Hikes
  • January 1 - Five Rivers: Adventure NY: First Day Hikes
  • January 6 - Reinstein Woods - Virtual Program: Sustainability Lunch Talk