Hundreds of climate activists paid their respects to a Swiss glacier on Sunday that is due to disappear over the next decade, the victim of a warming environment.

The Pizol glacier, now at less than a tenth of a square km, in the Glarus Alps in eastern Switzerland has been retreating as temperatures climb. Located about 2,600 metres (8530 ft) above sea level, the glacier is due to vanish completely by 2030.

“I have climbed up here countless times,” said Matthias Huss glaciologist at ETH Zurich university, addressing the people who joined the march. “It is like the dying of a good friend.”

At roughly 0.06 square km (0.02 square miles), the glacier is just a fraction of its area in 1987 when scientists recorded it at 0.32 square km. Just four years ago, its area was put at 0.1 square km, according to the Global Glacier Change Bulletin.

The gathering in Switzerland, which has about 1,500 glaciers, mirrors an action in August when activists and others in Iceland commemorated a melted glacier there.

In Switzerland, climate change activism has been rising, including action this year in which dozens of people were arrested after blocking entrances to Swiss banks some people blame for their role in financing energy projects that are reliant on fossil fuels.

Moreover, the country famous for its direct democracy may soon vote on going climate neutral, after organisers of a petition drive called “the Glacier Initiative” collected 120,000 signatures needed to put the measure on the ballot.

What is the World Economic Forum’s Sustainable Development Impact summit?

It’s an annual meeting featuring top examples of public-private cooperation and Fourth Industrial Revolution technologies being used to develop the sustainable development agenda.

It runs alongside the United Nations General Assembly, which this year features a one-day climate summit. This is timely given rising public fears – and citizen action – over weather conditions, pollution, ocean health and dwindling wildlife. It also reflects the understanding of the growing business case for action.

The UN’s Strategic Development Goals and the Paris Agreement provide the architecture for resolving many of these challenges. But to achieve this, we need to change the patterns of production, operation and consumption.

The World Economic Forum’s work is key, with the summit offering the opportunity to debate, discuss and engage on these issues at a global policy level.

“We can’t save the Pizol glacier anymore,” said Huss. But if people acted now, many of the negative effects of climate change could be contained. “Let’s do everything we can, so that we can show our children and grandchildren a glacier here in Switzerland a hundred years from now.”