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Floods battering Brazil, Afghanistan are extreme climate events scientists warn we aren't prepared for

Whether it’s too much water or not enough, scientists say extreme events — like the recent deadly floods that displaced families in Brazil and Afghanistan — are becoming more frequent and battering many parts of the world that aren't prepared to deal with them.

Deadly flooding shows developing countries not prepared to deal with extreme climate events, expert says

A man in muddy, wet clothing tips a wheelbarrow full of mud from inside his flooded home into a puddle.
Casiano Baldasso removes mud from his house that was partially destroyed by floods in Mucum, Rio Grande do Sul state, Brazil, on May 11. (Adriano Machado/Reuters)

Historic flooding in southern Brazil may take a month to subside with more than half a million people out of their homes and warned not to return.

"I have never cried in my life," said Casiano Baldasso, gazing at his ravaged house, which was submerged in water up to the second storey.

"This time I cried. Your whole life is there, the 50 years I worked," he said, wearing gloves and knee-high rubber boots as he used a wheelbarrow to dig out the mud from the shell of his house. 

In the state of Rio Grande do Sul, INMET, the national weather service, has reported that about 630 mm of rain has fallen so far this month. That's more than London's average annual rainfall. At least 149 people have died and over a hundred are still missing, according to state officials. 

A city street is engulfed by floodwaters.
An aerial view shows the flooded streets of Porto Alegre after days of heavy rain on May 14 in the state capital of Rio Grande Do Sul, Brazil. The state governor issued an alert that water levels of Lake Guaiba could rise 20 cm over the level measured last week, which would be a record. (Jefferson Bernardes/Getty Images)

In Porto Alegre, the state capital, Lake Guaiba rose to record levels last week and flooded the city with a population of more than a million people. It's rising again this week. 

Brazil's President Luiz Inacio Lula da Silva has promised nearly $1,000 to each family that has lost their homes.

Too much water is the reverse of last year's historic drought in the Amazon, but whether it's flooding or drought, scientists say extreme events are more frequent and battering many parts of the world. 

WATCH | Floods linked to climate change: 

Severe flooding in Brazil, Afghanistan linked to climate change

7 months ago
Duration 2:15
Afghanistan is dealing with the worst floods it has seen in more than three decades while floods in Brazil have forced more than half a million people from their homes, experts say both are signs of a climate emergency.

Extremes becoming more frequent

"People on the streets here in Brazil, they've attributed this change to global climate change driven by the increase of fossil fuels," Paulo Artaxo told CBC. 

A physics professor at the University of Sao Paulo, and a member of the Intergovernmental Panel on Climate Change (IPCC), Artaxo says the last IPCC report showed the southern tip of Brazil would see increasing precipitation and more extremes because of its position at the confluence of tropical and polar currents. 

"That's exactly what is happening," he said. 

In this case, Artaxo says a lot of water vapour coming from Amazonas, a state in northern Brazil, coupled with a much warmer south Atlantic ocean, resulted in prolonged dumps of rain.

Brazil's flooding crisis shows "how unprepared developing countries are to deal with this kind of climate extremes on both sides," said Artaxo.

Deadly Afghan floods

May has been a particularly deadly month for villagers in at least three Afghan provinces.

Flash floods last week killed at least 315 people, with more than 1,600 injured, according to relief agencies and Taliban authorities. 

In Baghlan province, torrents of muddy water and rocks tore into villages sweeping away everything in its path. 

"I lost 13 members of my family, including women and children, as well as many livestock," said Muhammad Yahqoob, standing at the edge of multiple graves. 

People gather around mounds of dirt in a burial site
People gather for a burial ceremony for the victims of flash floods in a village in Baghlan-e-Markazi district of Baghlan province, Afghanistan, on May 11. The floods have devastated villages in northern Afghanistan, with over 342 dead and 1,600 more injured, according to initial reports by local authorities. (Atif Aryan/AFP/Getty Images)

The floods destroyed the valley, he says. 

"We have no food, no drinking water, no shelter, no blankets, nothing at all."

In remote areas, the World Food Program (WFP) is trucking in food supplies as far as it can, then strapping supplies to donkeys and walking them in. 

"They're grieving for their loved ones, they've lost their houses," said Timothy Anderson, WFP program director in Afghanistan. 

"But what they're most concerned about is having lost their livelihoods, because they know that the future looks very, very bleak." 

A boy wearing shorts and a tank top caked in mud stands in an alley holding a wheelbarrow full of mud.
A boy stands next to a wheelbarrow full of mud in the aftermath of floods in Sheikh Jalal District, Baghlan province, Afghanistan on May 11. (Sayed Hassib/Reuters)

'Many more will suffer'

Kabul has just gone through a drier than normal winter, and many have been predicting the continuation of a crippling three year drought, but Anderson says the spring has been wetter than predicted.

The WFP hopes to build more simple structures — metal cages filled with stones — to act as barriers along river banks and as a bulwark against rising waters

But humanitarian aid, vastly challenged since the Taliban took control of the country, is being stretched across multiple crises in Afghanistan, which has barely recovered from devastating earthquakes last October that killed at least 1,600. 

"The people living in the country do not have the resiliency to overcome these kind of crises," said Abdul Khaliq Sediqi, the communications director for the International Rescue Committee (IRC) in Afghanistan.

The IRC is responding to drought, earthquakes, the forced return of millions of Afghans from neighbouring countries, and now severe flooding.

"We can say that this is like a big alert, and the international community should consider this, and we should act as soon as possible," said Sediqi, because "many more will suffer." 

A woman walks past the ruins of a house as a man stands in front of it looking at a phone.
A woman walks by the ruins of a house after flash floods in the Borka village in Baghlan, Afghanistan, on May 13. According to the United Nations, Afghanistan is one of the countries that is most vulnerable to the climate crisis and the least prepared to adapt. (Muhammad Yasin/Middle East Images/AFP/Getty)

The UN special rapporteur for human rights in Afghanistan, Richard Bennett, posted on X, formerly Twitter, that the flooding was "a stark reminder of Afghanistan's vulnerability to the climate crisis." He urged both immediate aid and long-term planning. 

Afghanistan is one of the lowest emitters of greenhouse gas emissions mostly coming from transportation and agriculture, but it ranks in the top 10 countries that are most vulnerable to climate change.

"The worst part, it's not their fault, but they're facing it more and more, this climate induced crisis," said Srikanta Misra, country director with ActionAid Afghanistan.

He says there needs to be more emphasis on longer term support to make climate smart activities the priority and to "build capacity and preparation in communities facing the brunt of these kinds of crises."

ABOUT THE AUTHOR

Susan Ormiston

International climate correspondent

Susan Ormiston's career spans more than 25 years reporting from hot spots such as Afghanistan, Egypt, Libya, Haiti, Lebanon and South Africa.