Negotiations have been gridlocked, with developing countries unifying behind a call for COP27 to create a specific loss and damage fund - an idea that has faced reluctance from richer polluters wary of liability.
The latest accident happened just two weeks ago after 76 people were killed when their overloaded boat tipped over due to flooding in southeastern Anambra state.
Vessel with 85 people on board sinks amid heavy flooding, trapping the passengers, officials say, leaving 10 people dead and another 60 missing.
Niger's minister for humanitarian action says floods have killed at least 22 people, destroyed more than 3,000 homes and nearly 4,000 hectares of crops.
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