GREENWOOD LAKE. Recent milder winters have allowed many new and unwelcome species to appear.

03 Jul 2025 | 12:20

“We’ve lost the north arm of the lake,” Eric Hastings told fellow members of the Greenwood Lake Commission at their meeting June 17.

A massive mat of water chestnuts is covering that section of the seven-mile-long lake, which is partly in New York and partly in New Jersey. The commission is working on...