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Just six minutes after taking off from Addis Ababa on Sunday, Ethiopian Airlines Flight 302 lost contact with air traffic controllers and went down, killing everyone on board. In that moment, the world lost agents of change across multiple humanitarian and environmental movements. Many of the 149 passengers were headed to the fourth United Nations Environment Assembly in Nairobi. Among them were conference attendants leading work to end global hunger, take on plastic pollution in oceans, and make connections between climate change and gender inequity.