Pooja Tilvawala knows it's a gamble to use more than $46,000 of her own savings to help young people get to the United Nations climate summit in Brazil. But she thinks it’s a necessary one.

As national delegations, activists and other attendees struggle to find affordable places to stay by November, with some deciding not to go at all, Tilvawala, who lives in London, has spent hours working from afar to find lodging in Belem, negotiate prices and contracts and put down deposits. She did all that to create a housing portal specifically for young people who want to be part of the international conference. If not enough people sign up for the housing she’s secured, she might lose some of what she’s put down.

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