Copenhagen takes on its biggest climate threat – water

In low-lying Copenhagen where rising sea ranges, groundwater and rainfall pose a possibility to infrastructure, the Danish capital is attempting to adapt and protect metropolis areas from climate trade.

And Karens Minde park is one in every of the more than 300 tasks underway to forestall the metropolis being submerged.

A broken-down marsh as soon as shunned by other folks residing nearby, it has been redesigned with gorgeous meandering paths and grassy areas that double as much as amass rain and floodwater.

Built on the shores of the Oresund strait, Copenhagen is hugely susceptible to water.

“All of Copenhagen is in a system in negotiation with the water cycle because it’s wetland that has been drained,” said Anna Aslaug Lund, a College of Copenhagen architecture professor.
The threat is three-pronged. The Danish meteorological institute predicts rainfall will amplify by 30% to 70% by 2100; the sea will additionally rise by an realistic of 42 cm (16.5 inches) by the finish of the century and groundwater is additionally rising.

Most effective a well informed sight would uncover the special water defences set up in voice in Karens Minde park.

At one in every of the bends in the brick course there are three pipe shops for rainwater peaceable in the neighbourhood. It then flows to a man-made lake a number of hundred metres (yards) away.

Inventing solutions

The water is cleaned as it’s “transported all around the trickle meadow, after which right here we are able to retailer it and sooner or later let it out lend a hand into the harbour,” said Ditte Reinholdt Jensen of Hofor, the water and utility provider that designed the park with the metropolis.

Grass, shrubbery and timber border the man made lake.

Apart from as managing floodwater, Copenhagen wants to “strengthen biodiversity, fight warmth island effects and glean green areas” for folk to fulfill in, Jan Rasmussen, of the metropolis’s climate adaptation mission, told AFP.

The metropolis started work in 2008 to name its extinct spots, essentially from flooding.

“The largest peril is that we don’t need a manual,” there are likely to be now not any tried and examined strategies “of total this”, he said.

So solutions vary from neighbourhood to neighbourhood.

After torrential rain on 2 July 2011 — when a staggering 135.4 mm (5.3 inches) fell in barely two hours inflicting predominant peril — the metropolis made up our minds to kind a network of rainwater tunnels.

These lend a hand as underground rain “highways” in areas where metropolis building does no longer enable for inform water management.

“If we don’t need the residing, we need pipes to divert the water out of the metropolis,” Rasmussen said.

Mannequin for diverse cities

Some tasks, like the construction of the man made Lynetteholmen island that will per chance well support as a dyke against rising sea water, have did now not glean unanimous support.

However the metropolis has in most cases been applauded for its adaptation efforts.

“They are positively making an strive,” researcher Isabel Froes, an companion professor at Copenhagen Industry College, told AFP.

“They’re enticing with researchers, with the general public to glean more consciousness.”

Even with the metropolis’s population growing, one in every of their strongest solutions is to effect a ways from building in the bottom-lying areas.

“There are aloof many areas in Copenhagen which have complications when it comes to flooding from rainwater,” Aslaug Lund said.

“We must support a ways from building in low-lying areas.”

Copenhagen’s efforts are considered as a mannequin for what diverse cities can finish, Froes said.

“I call Denmark a prototype nation attributable to the scope of it,” she said.

“Or no longer it’s a big voice to envision new measures, to engage residents round them additionally, because Denmark is a have confidence society. We are inclined to examine solutions and we like solutions in addition to, which is rarely any longer (the case) everywhere.”