Nearly one month after record flooding struck Buenos Aires and La Plata, the water is receding but outrage and confusion remains. The storms that caused at least 59 deaths and damaged countless homes have left many citizens to wonder how the ordinary occurrence of rain escalated to such tragedy.
Although April’s disaster was one of the worst in the last century, floods in Buenos Aires are not infrequent, and people are now demanding investigation into the structural and environmental factors that cause the effects to be so severe.

Severe flooding in La Plata as seen from space (Photo courtesy NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.)
The Flood
On the night of 2nd April, more than 400 millimetres of rain fell in the province of Buenos Aires in just two hours, causing severe flooding in at least 21 towns. La Plata, the capital city, was the most affected, with at least 48 of the deaths, including a member of Abuelas de Plaza de Mayo. Here, water reached heights of over 1.5 metres and many people were trapped on rooftops overnight, waiting to be rescued.
In the days following the storm, more than 2,500 residents were evacuated from their homes, and the city remained in chaos with very little drinkable water and 600,000 people without power. After problems with looting arose, 400 extra police officers were placed in the city.
However, citizens feel the response was a failure.
“In our neighbourhood, where 700 families live, the police never came,” Sandro Barrios, from the Los Hornos neighborhood in La Plata told newspaper Perfil.com. Meanwhile, in Buenos Aires, on 17th April, hundreds of residents of Coghlan, Mitre, Villa Urquiza, Saavedra, Parque Chas, Villa Cerini, Nuñez, and Villa Pueyrredón gathered in front of the local governments’ headquarters to protest.
“We are tired of living in fear. Every time the clouds come, we expect the worst,” said one protestor. “[The government] knows where we are and we want answers.”
Citizens, experts, and government officials are all working to determine contributing factors to what some call a “constructed flood”, and attempting to move forward as the water recedes.

Rushing water in the streets of Buenos Aires (Photo: Beatrice Murch)
A City Made for Mishap
The metropolitan area of Buenos Aires, as well as the city of La Plata, are built on part of a large natural region called the ‘Pampa’ lowlands, with a climate distinct from other parts of Argentina. The temperature, atmospheric pressure, humidity and wind speed, and amount of precipitation are all specific to this region, and experts say that urbanisation has exacerbated the already intense climate, which experiences higher levels of humidity, rain, and flooding.
As economist Antonio Brailovsky explains in his book ‘Buenos Aires, ciudad inundable’ (‘Buenos Aires, a floodable City’), the Buenos Aires city faces unique climate challenges, as it has become what is called an “urban heat island”.
“Because of the materials the city is made of, it is capable of conducting heat three times faster than outside the city,” he says. “The cement absorbs and reflects heat much more efficiently than in natural land.”
This condition is worsened when smog keeps the air from escaping through the atmosphere above the city, increasing the heat and humidity. Water particles easily stick to the solid microparticles in the polluted air, causing levels of precipitation to be 10% higher in Buenos Aires than in the countryside.
“Without a doubt, this tendency to produce more precipitation is clearly associated with human-made modifications to the urban atmosphere,” Brailovsky says.
Many believe environmental disasters that are aggravated by urban development will worsen with global warming. Buenos Aires Mayor Mauricio Macri cited this hypothesis in his response to the flooding, telling channel TN: “What is happening now is the product of climate change. Now more than ever we have to commit to a green agenda with a view to reducing [greenhouse] gas emissions.”
2007 Nobel Peace Prize winner Osvaldo Canziani, who is on the Intergovernmental Panel on Climate Change, told publication La Prensa that recent studies support this theory.
“The urban heat island has changed the environment and can influence rain in the area. The city is filled with cars, most of the new buildings function without gas, and air conditioning is used more and more,” he said. “All of this uses electric energy and the combustion increases temperature, condensation, and causes more intense rains.”
“Buenos Aires is adopting qualities of a tropical city,” he added.
Canziani says another contributing factor to flooding is the reduction of the number of green spaces that naturally absorb the rain.
“Sixty years ago the topography of Buenos Aires was characterised by cobblestone streets and houses with gardens. When it rained, the ground absorbed nearly 40% of the water. But the construction of buildings makes the ground impermeable” he says. “Water runs off the roads leading to the sidewalk and into the street,” he says, adding that poor construction “compounds the situation”.
Brailovsky told La Prensa that the floods were “a slowly constructed tragedy.”
“We cannot point to a specific politician for what happened, but to decades of corruption where politicians knew certain zones were susceptible to flooding, but still permitted houses and buildings to be built there,” he said.

Flooding in the neighborhood of Belgrano during a severe storm. (Photo: Beatrice Murch)
He referenced neighbourhoods like Villa Crespo, which is built close to waterway Arroyo Maldonado, and floods year after year. He said that to avoid these problems, many countries have developed rules against construction in flooding-susceptible areas. For example, France prohibits construction in areas with more than 75% chance of flooding.
Brailovsky said Buenos Aires, whether through poor planning or government corruption, was unable to keep up with the enormous population growth of the early 20th century, and is unprepared for flooding, despite its frequency.
“The government needs to face this problem from a very basic level, like by changing the urban planning code, marking the zones of risk and from here, factoring in factors like climate change,” he said. “It’s crucial that the people outraged by the floods turn that anger into an effort to work together and call officials’ attention urban policies. It is not too late.”
Political Implications
Following the floods, politicians quickly scrambled to point fingers at one another, and with 98% of the population reportedly saying the government, not nature, was responsible for the extent of the flooding, there was plenty of blame to go around.
Mayor Macri implied that President Cristina Fernández de Kirchner’s administration was to blame, citing the halting of a US$120m World Bank loan that would have been used to channel one of three underground rivers in the capital. Federal planning minister Julio de Vido accused Macri of not sufficiently preparing the city for the storm, which was forecast by the national weather service 48 hours in advance.
Leandro Bullor, an analyst at the University of Buenos Aires, told Christian Science Monitor “the city government’s bad management is a grave problem.” According to reports, the city government had US$45 million budgeted towards flood prevention works last year, but only spent 5% of that. In 2013, that budget was cut even more, from US$45 million to US$5 million.
Macri was criticised for being in Brazil on holidays when the storm struck and for taking several days to return to the water-damaged city of Buenos Aires. La Plata mayor Pablo Bruera, who was also in Brazil at the time, angered citizens by tweeting that he was “checking on evacuation centres” in La Plata when in reality, he had not yet returned from vacation.
When officials came to survey the damage -including Buenos Aires governor Daniel Scioli, social development minister Alicia Kirchner, president Fernández, Macri, and Bruera – they were booed and ushered away. “Go away” and “You came too late!” the crowd yelled.
Many politicians are now hurrying to appease constituents with talks of reform, but it is unclear if this is a legitimate promise.
Looking Forward

Volunteers at Universidad Nacional de La Plata work to make alcohol gel to help keep people clean (Photo: Patricio Lorente)
While politicians bicker over what is to be done, plenty of volunteer citizen groups are working hard to get victims back to a semblance of normal daily life.
In both La Plata and Buenos Aires, people are struggling to recuperate the estimated 55,716 homes affected by the flood. More than 22,500 tons of trash was collected, and people in the area say that a large quantity of trash remains in the streets. Abandoned vehicles rest throughout the city, unclaimed. As a precautionary measure, 60,000 people were given anti-flu and other vaccines following the floods. The government is offering subsidies for items lost in the disaster, but it isn’t enough. In one of the more touching events following the disaster, 20 pets lost in the flood were reunited with their owners last week.
Citizens are on the way back to their standard daily routines, but will Argentina ever find a permanent fix to its flooding problem?
Although it seems some government entities are stepping up to change the system that caused this tragedy, angry citizens remain unconvinced reforms will stick. As Martín Lousteau, a former economy minister, said in La Nación: “With every new tragedy, we forget about the last one.”
In the recent anti-government protests, the floods were a hot topic, with many signs reading “Corruption kills!” towering over the crowds. Scioli has asked that municipalities revise their urban planning codes, and various government entities under investigation to find who is ultimately responsible for the effects of the April floods. With inevitably more rain to come in the next few months, Argentines are skeptical, but hopeful, for change.
What do porteños think about the way the flooding was handled? Click here to find out.