COPENHAGEN (Reuters) – What to do with the mountain of garbage a major metropolitan area produces is an age-old question. Copenhagen has come up with a brand-new answer: ski down the mountain.

Well, not exactly. The waste is actually inside Copenhill, a waste-treatment plant 10 minutes from downtown Copenhagen. Its main facility is a futuristic building with a sloping roof 85 meters high that’s covered in a material called neveplast. It looks just like a ski slope, except it’s green.

“I think everybody is surprised to start with when they look at it and it’s not snow,” said Christian Ingels, the director at Copenhill. “It’s green dry-slope material. After one or two runs, your mind is automatically adjusting so you feel exactly like skiing.”

Designed by Danish architect Bjarke Ingels, the plant is an important step in Copenhagen’s ambition to become the world’s first carbon-neutral capital. It’s an attempt to build a waste-treatment plant that local residents are happy to see come to their neighborhood. It seems to be working.

“It’s a fantastic experience in the middle of a city to be able to do what you do like the most,” said visiting skier Pelle Hansen. “Instead of having to go six, seven, eight or ten hours to a ski destination, you can be here in ten minutes.”

The plant will also burn waste from around 600,000 residents and 68,000 businesses to produce electricity and district heating, will be sent back to the resident. It will also recycle some of the waste.

The plant began operating in 2017, and the recreational part will open permanently this spring. The slope will open year-round.

“It’s fantastic that one can ski without snow,” said ski slope visitor Tommy Christensen. “It’s a slightly different experience than to skiing in real snow, but it’s my second run and I’ll try it again. It looks promising.”

TORONTO (Reuters) – Toronto police said on Monday they are investigating an incident of a woman hurling a chair from the balcony of a high-rise condominium that was captured on a video that went viral.

The video, captioned “Good morning,” shows a woman with long, blond hair and dressed in black picking up a chair on the balcony and then looking over the balcony while holding the chair. She then stands up straight and looks into the camera as she appears to speak briefly before turning and throwing the chair off the balcony.

The video shows the chair falling toward a busy highway seen below, though police said the chair landed on the condo building’s entrance. No one was injured or killed in the incident, which occurred on Saturday, Toronto Police Service media relations officer David Hopkinson said.

It caught the attention of users of Reddit who expressed safety concerns and sparked the police investigation.

Hopkinson said he first noticed the video on Sunday and was “outraged” by the incident. He said the woman also threw multiple other objects from the balcony, though only the chair was shown on the video.

Hopkinson said the woman in the video could be charged with common nuisance and mischief, endangering life, which is an extreme level of “mischief.” He said the police are seeking the public’s help in identifying the woman.

Incidents involving objects from high-rise building have come to police attention before, Hopkinson said. “There’s quite a number of things investigated thrown from bridges, condos, towers, other high places,” he said. “People do foolish things.”