Brazilian President Jair Bolsonaro said on Tuesday he wants French President Emmanuel Macron to withdraw the "insults" made against him before he considers accepting a $20 million (16.3 million pounds) offer from the G7 nations to help fight forest fires in the Amazon.
When Juan Carlos Cuevas fled Puerto Rico last year, after Hurricane Maria ravaged the island, he may unwittingly have traded a fight with nature for a political battleground.
While efforts to better equip the city to handle flood waters have struggled to keep pace with a booming population, the threat from climate change has worsened, experts say.