Detail view of a mural painted by Argentine artist Martin Ron about the historical drought that has lowered the level of the country's most important river, the Parana, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

A general view shows murals painted by Argentine artist Martin Ron about the historical drought that has lowered the level of the Parana River, the country's most important river, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

Argentine artist Martin Ron poses for a portrait in front of his murals, about the historical drought that has lowered the level of the country's most important river, the Parana, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

Argentine artist Martin Ron poses for a portrait in front of a mural that he painted, about the historical drought that has lowered the level of the country's most important river, the Parana, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

Argentine artist Martin Ron holds his brush next to a mural that he is painting, about the historical drought that has lowered the level of the country's most important river, the Parana, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

A person cycles past a mural painted by Argentine artist Martin Ron about the historical drought that has lowered the level of the Parana River, the country's most important river, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

Birds fly past a mural painted by Argentine artist Martin Ron about the historical drought that has lowered the level of the country's most important river, the Parana, in San Nicolas, Argentina September 16, 2021. Picture taken September 16, 2021. REUTERS/Agustin Marcarian

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

Cars are pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

Children play in the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

Boats are seen on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

People cross walking the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A picture shows the low level of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

Children play in the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A picture shows the low level of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A picture shows the low level of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

A stranded cargo ship is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Lambare, Paraguay September 13, 2021. Picture taken September 13, 2021. REUTERS/Cesar Olmedo

People walk on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

Ships are pictured at the Villeta port, on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

Garbage collectors are pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

Garbage is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

A ship travels on the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. REUTERS/Cesar Olmedo

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

A woman sips mate while sitting on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

Boats are pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

A boat is pictured on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in San Antonio, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

A ship travels on the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. Picture taken August 24, 2021. REUTERS/Cesar Olmedo

People walk past a stranded barge on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in San Antonio, Paraguay August 24, 2021. REUTERS/Cesar Olmedo

Fisherman Rafael Trinidad, 52, walks on the shore of the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in San Antonio, Paraguay August 24, 2021. REUTERS/Cesar Olmedo

A ship travels on the Rio Paraguay (Paraguay River), which flows down to the Parana River, as the lack of rain in Brazil, where the river originates, has brought water levels down, forcing cargo ships to reduce the amount of grains that are loaded for export, in Villeta, Paraguay August 24, 2021. REUTERS/Cesar Olmedo

Marcos Costa of Parana, Brazil, flips a calf in the tie-down roping event during the rodeo as the Calgary Stampede gets underway following a year off due to coronavirus disease (COVID-19) restrictions, in Calgary, Alberta, Canada July 11, 2021. REUTERS/Todd Korol

Marcos Costa of Parana, Brazil flips a calf in the tie-down roping event during the rodeo as the Calgary Stampede gets underway following a year off due to coronavirus disease (COVID-19) restrictions, in Calgary, Alberta, Canada July 9, 2021. REUTERS/Todd Korol

A general view of the Puente Nuestra Senora del Rosario (Our Lady of Rosario) bridge, which links the Rosario city in the Santa Fe Province with Victoria city in the Entre Rios Province, over the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

A man pulls a kayak to the water on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian TPX IMAGES OF THE DAY

A woman enjoys the day on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Boats are seen stranded in a dried out wetland on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Footsteps are pictured in a dried out wetland on the shore of the Parana River, in Rosario, Argentina, July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Houses and boats are seen on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Boats are seen on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Boats are seen on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

Boats are seen on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

People enjoy the day on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

People enjoy the day on the shore of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

A ship sails through the waters of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

A ship sails through the waters of the Parana River, in Rosario, Argentina July 8, 2021. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. REUTERS/Agustin Marcarian

A ship sails through the waters of the Parana River, in Rosario, Argentina. The lack of rain in Brazil, where the river originates, has brought water levels down in Argentina, forcing cargo ships to reduce the amount of grains that are loaded for export. July 8, 2021. REUTERS/Agustin Marcarian

Brazilian forestry student Mateus Sanquetta separates material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Brazilian researcher Emmanoella Guarana analyzes material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Brazilian forestry student Mateus Sanquetta separates material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Brazilian forestry student Mateus Sanquetta separates material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Brazilian researcher Emmanoella Guarana analyzes material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Brazilian forestry student Mateus Sanquetta separates material collected in the Amazon to check how much climate-warming greenhouse gas a small plot of the rainforest can contain, at the Center of Excellence in Research on Carbon Fixation in Biomass at the Federal University of Parana in Curitiba, Brazil, December 1, 2020. Picture taken Decemer 1, 2020 REUTERS/Rodolfo Buhrer

Carlos Roberto Sanquetta, a forestry engineering professor at the Federal University of Parana, botanist Edilson Consuelo de Oliveira and Rioterra plant nursery worker Juciney Pinheiro dos Santos inspect a parcel of Amazon rainforest in Itapua do Oeste, Rondonia state, Brazil, November 4, 2020. Picture taken November 4, 2020. REUTERS/Jake Spring

Graphic shows estimates of carbon storage in different fields according to data collected by the University of Parana (UFPR) in Brazil

Boats are seen stranded in a dried out wetland on the shore of Parana River near the city of San Lorenzo, in Santa Fe province, Argentina August 28, 2020. REUTERS/Agustin Marcarian

A boat is seen stranded in a dried out wetland on the shore of Parana River near the city of San Lorenzo, in Santa Fe province, Argentina August 28, 2020. REUTERS/Agustin Marcarian

A boat is seen stranded in a dried out wetland on the shore of Parana River near the city of San Lorenzo, in Santa Fe province, Argentina August 28, 2020. REUTERS/Agustin Marcarian