Former Colombian president Gustavo Petro gestures during his conference, "Capital in the 21st Century: The Political Economy of the Climate Crisis," at the National Autonomous University of Mexico (UNAM) in Mexico City on September 2, 2026. (Photo by YURI CORTEZ / AFP via Getty Images)

Guatemalan Nobel Peace Prize laureate Rigoberta Menchu waves upon arriving to attend former Colombian president Gustavo Petro's conference, "Capital in the 21st Century: The Political Economy of the Climate Crisis," at the National Autonomous University of Mexico (UNAM) in Mexico City on September 2, 2026. (Photo by YURI CORTEZ / AFP via Getty Images)

Guatemalan Nobel Peace Prize laureate Rigoberta Menchu attends former Colombian president Gustavo Petro's conference, "Capital in the 21st Century: The Political Economy of the Climate Crisis," at the National Autonomous University of Mexico (UNAM) in Mexico City on September 2, 2026. (Photo by YURI CORTEZ / AFP via Getty Images)

People walk and ride motorcycles past a road blockade set up by agricultural producers in the town of Cuatro Canadas, Santa Cruz department, Bolivia, on September 2, 2026, in protest against Supreme Decree 5676, which raises the price of diesel. (Photo by RODRIGO URZAGASTI / AFP via Getty Images)

Truck drivers rest in hammocks hung beneath a truck during a road blockade set up by agricultural producers in the town of Cuatro Canadas, Santa Cruz department, Bolivia, on September 2, 2026, in protest against Supreme Decree 5676, which raises the price of diesel. (Photo by RODRIGO URZAGASTI / AFP via Getty Images)

People walk and ride motorcycles past a road blockade set up by agricultural producers in the town of Cuatro Canadas, Santa Cruz department, Bolivia, on September 2, 2026, in protest against Supreme Decree 5676, which raises the price of diesel. (Photo by RODRIGO URZAGASTI / AFP via Getty Images)

Agricultural producers block a road in the town of Cuatro Canadas, Santa Cruz department, Bolivia, on September 2, 2026, in protest against Supreme Decree 5676, which raises the price of diesel. (Photo by RODRIGO URZAGASTI / AFP via Getty Images)

This aerial view shows agricultural producers blocking a road in the town of Cuatro Canadas, Santa Cruz department, Bolivia, on September 2, 2026, in protest against Supreme Decree 5676, which raises the price of diesel. (Photo by RODRIGO URZAGASTI / AFP via Getty Images)