Staff at Hull's Siemens Gamesa factory will be marking the construction of their 500th wind turbine by planting hundreds of trees.
They'll be joined by school children on the Preston Road Estate in planting 499 trees.
The first tree, a silver birch, was planted in October, adjacent to the public footpath at the entrance to the factory, marking the creation of Siemens Gamesa’s first turbine blade at the factory.
It's all part of the Northern Forest initiative, which stretches from Hull to Liverpool.
Anton Bak, Plant Director, Siemens Gamesa, says: "Environmental protection is fundamental to the culture of Siemens Gamesa. Here in Hull we are creating a culture of respect for nature. I am delighted that we are growing a woodland right here on our doorstep for wildlife to flourish and for local communities to visit and enjoy.
"We are pleased to be part of the Northern Forest, delivering a better environment for all by improving air quality and contributing to carbon reduction."