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Extreme Drought Drives Amazon Rivers to Record-Low Levels

The Amazon river, one of the most vital ecosystems on Earth, is grappling with an unprecedented drought that has driven its major rivers to historically low levels. This severe weather event has reshaped the landscape, turning once-thriving riverbeds into expansive sandbanks and creating a stark and apocalyptic environment. The ramifications of this crisis are profound, affecting not only the local ecosystems but also the communities that rely on these rivers for their livelihood.

Rivers in Crisis: Detailed Analysis

Below are detail analysis:

Madeira River: A Case Study

The Madeira River, which flows through the Brazilian states of Amazonas and Rondônia, is experiencing one of the most severe drops in water levels. On September 9, 2024, the river measured just 79 centimeters (31 inches) in Porto Velho. This level is 33 centimeters (13 inches) below the previous record low set in October 2023. The Madeira River is a critical waterway for the region, and its diminished flow is causing widespread concern.

Other Affected Rivers

In addition to the Madeira River, other significant waterways in the Amazon are also seeing unprecedented low levels. The Negro, Solimões, and Purus rivers have all set new records for low water levels. For example, the Purus River, which originates in Peru and flows through Acre and Amazonas states, measured 7.5 meters (24.6 feet) on September 9 in Beruri. This reading is 2.2 meters (7.2 feet) lower than the previous record set on the same date in 1983.

These record lows are indicative of a larger pattern affecting the entire Amazon Basin. The Amazon River itself measured 4.7 meters (15.5 feet) in Itacoatiara on September 9, 2024, which is 3.3 meters (11 feet) lower than the previous record set in September 2017. Such drastic reductions in water levels are alarming and signal a severe disruption in the region’s hydrological cycle.

Expert Insights on the Drought about Amazon River

How about the expert insights on the drought? Below are more 

Hydrological Perspectives

Adriana Cuartas, a renowned hydrology researcher at the National Center for Monitoring and Warning Natural Disasters (CEMADEN), has provided valuable insights into the current drought. Cuartas indicated, “Based on the data we have and the expected rainfall patterns, we can anticipate that this could be the most severe drought the Amazon has ever faced.” This statement underscores the gravity of the situation and highlights the need for urgent action.

Predictions and Future Outlook

Ana Paula Cunha, also from CEMADEN, has forecasted that the drought conditions may worsen. She noted, “I would say that more records will be broken. The next round of rain is expected to be delayed, with significant rainfall not anticipated until November or later. September and October are likely to remain chaotic.” This forecast suggests that the situation could continue to deteriorate, further exacerbating the challenges faced by the region.

Impact on Local Communities and Economy

Here’s information about its local communities and economy

Economic Disruptions in Manaus

The severe drought has had a profound impact on the city of Manaus, which is implementing an emergency plan to mitigate the effects. The city has initiated the construction of giant ferries to navigate the low river stretches that larger ships can no longer cross. This plan aims to ensure the continued transportation of goods and mitigate economic disruptions.

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However, despite these efforts, the population of Manaus is likely to experience increased costs for food items and electronics. The drought’s impact on transportation is causing supply chain disruptions, leading to higher prices for imported goods and potentially impacting local industries.

Environmental Consequences

The drought has also raised concerns about the Amazon river dolphins. In 2023, 209 dolphins perished in Tefé Lake due to elevated water temperatures, highlighting the severe impact of the drought on local wildlife. The decrease in water levels and rising temperatures are creating stressful conditions for aquatic species, contributing to the potential for further die-offs.

The Role of Climate Change and Deforestation

Below are detail:

Climate Anomalies

The current drought has been attributed to several climate anomalies. The drought’s onset in 2023 was linked to El Niño, which caused reduced rainfall over the Amazon region. The situation has worsened in 2024 with the onset of a new oceanic anomaly that has resulted in a shorter and milder rainy season. This combination of factors has exacerbated the drought conditions, leading to the severe water level reductions observed.

Deforestation and Its Effects

Deforestation is another critical factor contributing to the drought’s severity. The reduction in forest cover diminishes evapotranspiration, which is the process by which moisture is released into the atmosphere from trees and plants. With fewer trees to release moisture, the region experiences reduced rainfall, exacerbating the drought conditions.

Research from the Brazilian Space Agency (INPE) has highlighted the relationship between deforestation and reduced precipitation. Studies have shown that clearing 37% of forested areas in some parts of the Amazon resulted in a 34% decrease in rainfall. This relationship underscores the impact of environmental degradation on the region’s climate.

Impact on “Flying Rivers”

The “flying rivers”—moisture-laden winds that transport rain to other parts of Brazil—are also affected by deforestation. The reduction in forest cover disrupts these atmospheric moisture flows, leading to decreased rainfall in both the Amazon and neighboring regions. This disruption further contributes to the overall decline in water levels and the intensification of the drought.

Fires and Environmental Impact

Worst Fire Season in Nearly Two Decades

The Amazon is experiencing its most severe fire season in nearly 20 years. The thick smoke from these fires is covering nearly 60% of Brazil and is threatening to spread to Argentina and Uruguay. On September 9, 2024, São Paulo recorded the worst air quality among the world’s major cities, highlighting the extent of the environmental crisis.

Fire Management and Criminal Activity

Historically, fires were used at the final stage of deforestation to clear remaining branches and trunks. However, the current dry conditions have made it easier for criminals to set fires directly to destroy forests. This practice not only contributes to deforestation but also complicates efforts to monitor and control illegal land clearing activities.

Marina Silva, Brazil’s Environment Minister, has criticized this practice, stating, “The forest, due to climate change, has lost moisture, and now environmental criminals are using fire to destroy it more effectively. This makes it much more challenging for environmental agents to detect and address ongoing deforestation.”

Investigations into Criminal Fires

Authorities have launched investigations into criminal fires across Brazil, including in the Pantanal wetlands, the Cerrado savanna, and São Paulo. As of mid-September, the Federal Police had opened more than 50 investigations into criminal fires, aiming to combat this illegal activity and mitigate its impact on the environment.

Isolation and Challenges for Indigenous Communities

Effects on Indigenous Communities

The drastic reduction in river levels has led to the isolation of many communities in the Amazon. In regions where boats are the primary mode of transportation, the low water levels mean that residents must traverse large sandbanks to reach city centers. Indigenous communities, such as the Witoto in the upper Solimões River, are experiencing severe disruptions in their daily lives and traditional practices.

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Anderson Barroso Ortega, president of the Witoto of Alto Solimões Association, described the situation as “the worst drought I have ever seen.” Residents of these communities are forced to walk long distances under the sun to transport goods and access essential supplies.

Water Contamination and Health Issues

In Pará state, the Munduruku Indigenous people are facing additional challenges as smaller rivers dry up, leaving them with contaminated water due to illegal gold mining activities. This situation is further exacerbated by the overall water scarcity, which affects their access to clean and safe drinking water.

Broader Implications for Brazil

Nationwide Drought Impact

The drought’s effects are not confined to the Amazon. Brazil as a whole is experiencing its most severe drought in history, with two-thirds of the country affected. This widespread dryness is causing significant challenges, including prolonged periods without rain and disruptions to vital infrastructure.

Economic and Health Consequences

The drought is impacting Brazil’s economy and public health. The low water levels are forcing hydropower plants to shut down, leading to increased reliance on more expensive thermoelectric plants. This shift is driving up electricity costs for consumers. Additionally, the low air humidity, which has reached levels lower than those found in the Sahara desert, is exacerbating respiratory issues among the population.

Extreme Weather Events

Brazil’s recent history of extreme weather events, including the devastating floods in the south that killed more than 180 people, highlights the increasing volatility of climate patterns. CEMADEN’s Cunha suggests that these events are indicative of a “new normal” under climate change, characterized by alternating periods of severe drought and intense rainfall.

Conclusion

The current drought in the Amazon Basin underscores the urgent need for comprehensive action to address climate change and environmental degradation. The severe water level reductions in major rivers, the impact on local communities, and the broader implications for Brazil all highlight the critical nature of this crisis.

Addressing the Amazon’s drought requires a multi-faceted approach, including efforts to combat deforestation, mitigate climate change, and support affected communities. By understanding the causes and effects of this drought, we can work towards effective solutions and build a more resilient future for the Amazon and its inhabitants.

As the situation continues to evolve, it is crucial for both local and global stakeholders to remain vigilant and proactive. The Amazon, often referred to as the “lungs of the Earth,” plays a vital role in global climate regulation and biodiversity. Protecting this essential ecosystem is not only important for the region but for the entire planet.

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