Concerned about the impact of climate change on their grandchildren, elders in London have taken to the streets.

Concerned about the impact of climate change on their grandchildren, elders in London have taken to the streets, the BBC reports.

The Extinction Rebellion Grandparents, who staged a protest at Buckingham Palace on October 15, are part of the wider Extinction Rebellion movement, which is calling for the United Kingdom to declare an “ecological emergency” and to reduce the country’s net greenhouse emissions to zero by 2025.

“I think there’s a lot of our generation who realize we have contributed to it all our lives, not willingly but that’s the way the system has been,” one 66-year-old grandmother told the BBC. “But we feel really responsible with the next generation. We stand in solidarity with the youngsters.”

More than 1,400 Extinction Rebellion demonstrators have been arrested in London this month, and on October 14, the police issued a ban on further protests, citing “ongoing serious disruption to the community.”

That didn’t deter the newly formed coalition of grandparents, who claimed their gathering was “not a protest or an action, but a family-friendly photo,” according to the BBC.

“We all understand what a joy and honour it is to become a grandparent and how those gorgeous bouncy little people enrich our lives,” the event’s organizer wrote in a Facebook post. “We love them, and would do anything for them—now’s our chance.”

About 100 people showed up, the group says.