BELEM, Brazil — As United Nations climate talks rolled on Wednesday at the elaborate new venues built for the summit, many of the activists eager to shape the talks took to the water.
Carried by scores of boats large and small, a vast group…

BELEM, Brazil — As United Nations climate talks rolled on Wednesday at the elaborate new venues built for the summit, many of the activists eager to shape the talks took to the water.
Carried by scores of boats large and small, a vast group…