Will the El Niño phenomenon push the world towards a new wave of drought and fires?

Attention is once again turning to the El Niño phenomenon after warnings issued by international and Australian climate authorities regarding its possible development in the coming months, in light of expectations of rising temperatures and declining rainfall rates in some areas. Recent estimates indicate that there is a high probability of the phenomenon forming during the second half of the year, which brings to the fore concerns related to its effects on natural resources, ecosystems, and economic activities.

In this context, the Australian Meteorological Service and international climate organizations expected that the Pacific region would witness the development of the El Niño phenomenon during the current winter in the Southern Hemisphere, with a probability of up to 90% for the phenomenon to form before November. Some climate models also indicate that the expected event may be of moderate to strong intensity.

These forecasts are of particular interest in Australia, where the El Niño phenomenon has historically been associated with hotter and drier conditions in many regions, especially the east of the country, which raises the possibility of drought, heat waves, and forest fires during subsequent periods.

This file is related to the goals ofSustainable Development, especially the thirteenth goal related to climate action, and the fourteenth goal related to life under water, in addition to the fifteenth goal related to life on land, as the El Niño phenomenon represents one of the climatic factors affecting natural resources and ecosystems in many regions of the world.

What is the El Niño phenomenon?

The El Niño phenomenon is one of the main components associated with the irregular periodic change in atmospheric pressure between the eastern Pacific Ocean, known as the Pacific Southern Oscillation, and it is one of the most important natural factors influencing the global climate. The phenomenon occurs when water surface temperatures in large parts of the tropical Pacific Ocean rise above normal levels, leading to changes in atmospheric movement and wind and rain patterns around the world.

These changes affect the distribution of humidity and temperature between different regions of the Earth. Some regions witness periods of drought and high temperatures, while other regions are exposed to heavy rains or unusual floods.

For this reason, El Niño is closely monitored by international climate institutions, due to its potential impacts on agriculture, water, energy and ecosystems in a large number of countries.

The impact of the El Niño phenomenon on Australia

Australia is one of the countries most affected by the developments of the El Niño phenomenon, as the phenomenon is usually associated with high temperatures and low rainfall rates in large parts of the country, especially during the winter and spring seasons.

Climate data reveal that 9 out of 10 extremely dry winter and spring seasons in eastern Australia occurred during years that witnessed the El Niño phenomenon, which reflects the significant impact it can have on water resources, agricultural activities and ecosystems.

However, experts stress that the intensity of El Niño does not necessarily mean that the effects are identical from one event to another, as other local and regional climatic factors interfere with it that may affect the magnitude of the actual results on the weather within Australia. Specialists also point out that the development of the phenomenon does not mean that drought will occur immediately, but rather it increases the possibility of hotter and drier conditions compared to normal rates.

El Niño phenomenon and extreme weather risks

El Niño is associated with a number of climate impacts that may extend to different sectors, from water resources and agriculture to natural ecosystems. When rainfall rates decrease and temperatures rise for long periods, pressures on natural resources increase and the environmental and economic repercussions associated with the phenomenon expand, including:

Water Resources and Agriculture

Reduced rainfall rates during El Niño periods lead to a decrease in soil moisture and increased pressure on water resources, which may affect agricultural activities and food production in some areas. The need for more efficient water management is also increasing in light of the potential for prolonged drought and the decline in natural recharge rates for water reserves.

Heat waves and high temperatures

El Niño years are usually associated with above-normal temperatures in parts of Australia, which increases the likelihood of heat waves and their impacts on public health, economic activities and ecosystems. These risks increase as the global trend towards rising temperatures continues as a result of climate change.

Forest fires

Hotter and drier climates increase the likelihood of wildfires, as plants and soil become more vulnerable to combustion during prolonged dry periods. Some previous El Niño events have been associated with increased fire risks in a number of regions, which reflects on biodiversity, natural habitats, and air quality.

Coral bleaching

The effects of El Niño extend to the marine environment as well, as rising water temperatures during some of its events lead to an increase in the possibility of coral bleaching, a phenomenon during which corals lose the microalgae that live within their tissues and provide them with most of their energy needs as a result of their exposure to thermal stress, which leads to their color turning white and their ability to survive and grow weakened. This phenomenon affects marine ecosystems on which large numbers of living organisms depend, and its effects may also be reflected in economic activities related to marine resources and eco-tourism.

Climate change exacerbates impacts

Concerns about the repercussions of El Niño are increasing with expert warnings that climate change may exacerbate the severity of the phenomena associated with it, making drought periods more severe and persistent, and leading to more extreme heat waves, as well as some periods of rain turning into more intense and violent precipitation compared to what was the situation in previous decades.

In this context, some specialists describe the relationship between climate change and El Niño as a “dangerous duo,” given the increasing pressures their conjunction may cause on ecosystems, natural resources, and infrastructure, which reinforces the need to develop climate adaptation plans and raise levels of early preparedness to confront extreme weather conditions.

Preparedness for climate risks

Current expectations prompt many government agencies and relevant institutions to strengthen preparedness plans to deal with the potential impacts of the El Niño phenomenon, especially with regard to managing water resources and reducing the risks of drought and forest fires.

It also highlights the importance of developing early warning systems and improving the ability to predict climate phenomena, which helps take proactive measures that reduce potential environmental and economic losses.

Previous experiences confirm that enhancing climate resilience is an essential element in confronting the effects associated with El Niño, whether through sustainable natural resource planning or developing infrastructure capable of adapting to changing climate conditions.

In turn,The Earth Guards Foundation highlights the importance of monitoring the El Niño phenomenon and understanding its potential impacts on the environment and natural resources. It also stresses the need to strengthen climate adaptation efforts and develop environmental policies based on scientific data, which contributes to protecting ecosystems and enhancing the ability of societies to face future climate challenges.