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For Kenyan schoolteacher Simon Ewoi, having an iron-sheet roof on his house has been a source of pride - and a symbol of prosperity - in a village where thatched-grass roofs are the norm.

But about a decade after he built his home in Turkana county, Ewoi recently constructed a new building on his compound - this time reverting to a grass roof to try to cope with rising temperatures fuelled by climate change.

Sitting under an acacia tree to cool off from northern Kenya's stifling heat, youth leader Bonface Ewaar was deep in discussion about how best to warn his community of Katilu about worsening drought.

Working with two colleagues, the 24-year-old pored over a disaster alert bulletin - issued by the government drought agency - that he planned to translate from English into the local Turkana language to share by word of mouth and over the radio.

A sculpture of a giant tap spewing plastic waste greeted delegates at U.N. environment talks in Kenya earlier this year - a reminder of the urgent need for them to agree a .

The 30-foot (nine-meter) tall sculpture was built from rubbish collected in Nairobi's Kibera slum by artist and activist Benjamin Von Wong, who raised funds for the project by selling non-fungible tokens (NFTs), records of digital images bought with cryptocurrency.