The action by Meteorologists United on Climate Change comes on the Northern Hemisphere’s summer solstice and amid extreme weather around the world. In southern Texas, emergency workers used boats to rescue trapped residents from their homes in the city of Mercedes Wednesday after more than a foot of rain fell, leaving whole neighborhoods underwater. In Ivory Coast, at least 18 people were killed in the city of Abidjan this week after flash floods from torrential rains tore through residential neighborhoods. In India, nearly 20 people were killed and some 800,000 people were displaced after heavy monsoon rains caused a river to overflow its banks, flooding hundreds of villages. Heavy rains have also left parts of neighboring Bangladesh underwater, with 12 killed and a quarter-million people displaced. Among the dead were two Rohingya refugees living in a sprawling coastal camp in Cox’s Bazar, near the border with Burma. Aid groups are warning of the potential of flooding and landslides to displace some of the 700,000 Rohingya refugees living in makeshift shelters there.