WORLD ECONOMIC FORUM: One Trillion Trees - a global initiative is launched at Davos

On the panel:

Hindou Oumarou Ibrahim, President of the Association for Indigenous Women and Peoples of Chad

Marc Benioff, CEO of Salesforce, who is providing financial support for 1t.org,

Ivan Duque, President of Colombia

Naturalist Jane Goodall

JV Sadhguru, Founder of the Isha Foundation

Dominic Waughray Managing Director, World Economic Forum Centre for Global Public Goods

President Duque of Colombia said: "The big challenge of our time is climate change and we will not be successful on climate change if we don’t defeat deforestation."

Colombia aims to plant 180 million trees by August 2022, he said.

"We're certainly at a time of planetary emergency," said Salesforce's Marc Benioff, referring to the urgent need to reduce carbon emissions. "We need to get a big eye on our forests so we can use [forests] to sequester this carbon."

Thanking US President Donald Trump for joining the initiative, he said: "Trees are a bi-partisan issue - everyone's pro-trees."

Benioff said he expected the US to plant 50-100 billion trees.

Sadhguru said as well as planting trees, fighting illegal logging was vital: it takes 10-20 years to grow a tree but just an afternoon to cut it down.

Jane Goodall, famous for her work protecting chimpanzees, says she moved into tree conservation when she saw the primates’ habitats - the forests of East Africa - being destroyed.

"If we don’t work with the people who are cutting down the trees on the steep slopes because they are desperate to grow food to feed their families then we will never save the chimpanzees."

Hindou Oumarou Ibrahim expressed the importance of trees to indigenous peoples.