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Newsround is at COP26 speaking to climate change experts who are at the summit in Scotland.

One expert is Victoria Gill, the Â鶹Éç's science and environment correspondent.

She joined Martin in the studio on day one of COP in Glasgow and answered some of his questions.

If you have more questions that you'd like Victoria to answer while we're at COP26, then let us know in the comments below.

Victoria: "It means I'm here for the entire time trying to figure out what's going on.

"To figure out how all these world leaders and negotiators are going to come together to tackle probably the biggest issue of our time, climate change."

Victoria: "It's a really important question, 'cause we throw that term around a lot.

"It is how we are changing the climate on this planet, essentially heating the surface of this planet, primarily by burning things like coal, oil and gas; fossil fuels.

"That releases what is called greenhouse gases, they're building up in the atmosphere. That means our atmosphere is trapping more heat on the surface of the Earth, so our Earth is warming up."

Victoria: "Young people have been huge in getting their voices heard, especially recently.

"I think everybody's familiar with Greta Thunberg - I was in the Youth COP in Milan in Italy, just a month ago and youth delegates from all around the world, youth attendees to that conference brought their proposals and their demands to world leaders to get them into this process.

"So hopefully we'll be hearing lots more from them because this is about the future of our planet and future generations."