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World leaders, scientists and activists are preparing for next month鈥檚 UN climate change summit in Scotland. These talks have been taking place for decades - but you sense the world is watching like never before, as awareness increases around how the planet is changing.

In 1992, a 12-year-old called Severn Cullis-Suzuki from Canada gave a rousing speech and appeal for action at the Earth Summit in Rio. Severn and her father remain long-term environmental activists and host Nuala McGovern brings them together in conversation to hear their thoughts on whether Severn鈥檚 speech would be any different today.

Nuala also considers the decisions people are taking to make their contribution towards saving the planet. Three activists in India, Wales and the United States discuss how they鈥檝e changed their lifestyles and why they don鈥檛 want to bring children into a world whose future is uncertain due to climate change.