Hello, I'm Nula McGavrin on the BBC World Service, and this is BBC OS Conversations on the Climate Civil Disobedience.

One of our conversations raises questions about the extreme lengths activists are prepared to go for their cause, including a hunger strike.

Plus, how for some, climate anxiety is taking a toll on mental health.

We're seeing more and more people come to seek support for themselves, children, young people and adults, because of their struggles with their feelings, their complex feelings about the climate emergency.

As the United Nations Conference, or COP26 in Glasgow, Scotland, offers an array of potential solutions and actions to tackle climate change, for some, protesting for change remains necessary.

And for a smaller group of people, that goes as far as civil disobedience.

And by civil disobedience, I mean refusing to comply with certain laws through what is often peaceful political protest.

Campaign groups, for instance, promote non-violent civil disobedience, and recently, Prince Charles said he sympathized with climate protesters.

But all these young feel nothing is ever happening, so of course they're going to get frustrated. But it isn't helpful, I don't think, to do it in a way that alienates people.

So I totally understand the frustration, the difficulties, how do you direct that frustration, in a way that is more constructive, rather than destructing.

The British broadcaster, Sir David Attenborough, has also been a COP26, calling on world leaders to step up to the challenge.

And last year, when asked in a BBC interview about direct action, compared to lobby and politicians for climate change, this is what he ought to say.

In getting it changed, you have to be careful that you don't break the law, I think.

I also think that we have to treat the people we share the community with respect, and disturbing their lives to such an extent that innocent people can't get about their own business is a serious thing to do, and could disenchant them or for a lot of people.

In the last couple of days, you may have heard about disruption caused by climate protests around the world, whether that's blocking roads in places such as the UK or maybe New York, demonstrators gluing their hands to the steps of parliament in New Zealand.

Well, we wanted to hear from some of those who've taken part in civil disobedience when it comes to climate change, to better understand their arguments and motivation.

So we brought together Jacob and Berlin, Germany, Nadia, the co-founder of a youth-led climate justice group in Kuala Lumpur, Malaysia, and first Marie in Paris, France.

In our fight in the climate justice fight, we've been doing so much that is within the border of the laws, like we've been organizing huge marches, we've been directly dialoguing with our political leaders, we've been involved in political issues.

We are actively talking to the leaders of big companies to present them examples of how they could change for the better, and yet nothing changes.

And it's been now more than 30 years than the AAPCC is warning everyone on the climate emergency that we are living and nothing changes.

So what we do with civil disobedience is just adding one more tool that we as citizens can use, and that we as citizens can just can use to push our objectives.

And it's not the only thing that we are going to use, and it's not something that is not done with respect.

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