NUNZIUM

News That Matters

19/08/2023 ---- 28/08/2023

As Australia transitions into September, a concerning forecast from the Bureau of Meteorology predicts a marine heatwave for the Tasman Sea. The waters off Tasmania and Victoria are expected to experience temperatures of at least 2.5C above average from September to February, with potential spikes up to 3.5C, according to oceanographer Grant Smith.

The south-east of Australia, a recognized climate change hotspot, is no stranger to such anomalies. Its waters are warming at a rate four times faster than the global average, a phenomenon largely attributed to the east Australian current and rising atmospheric temperatures, as explained by CSIRO research director Alistair Hobday.

The region still bears the scars from the record-breaking marine heatwave of 2016, which lasted 250 days. The heatwave had severe repercussions on marine life, including increased catch mortality, loss of salmon farming stock, and the emergence of tropical fish species. Additionally, an outbreak of Pacific oyster mortality syndrome posed a significant threat to the oyster population.

Hobday cautions that the upcoming summer could have similar effects, particularly on aquaculture. New species may appear in the southern south-east Australia, and the remaining kelp forest, a crucial component of the marine ecosystem, is at risk. Tasmania's giant kelp species have already seen a 95% reduction in their historical range.

In response to the impending heatwave, salmon farmers are exploring various strategies, including early harvesting, oxygen level enhancement in the water, or altering their feed mix. Hobday is also set to publish a paper in September, offering advice on how to prepare for the hotter, drier weather expected due to the probable onset of El Niño conditions.

CSIRO's Rich Little is currently leading a project to examine the changes in marine life in south-eastern waters over recent years. The project, expected to conclude by November 2024, involves a series of marine surveys. Preliminary findings point to changes in marine life composition, with increased numbers of mackerel and fur seals, and decreased populations of species such as blue warehou and red fish.

Scientists are further studying the extent to which these changes are due to climate change caused by burning fossil fuels and other local factors. The Australian Fisheries Management Authority is eagerly awaiting the results to understand the factors influencing changes in commercial fisheries.

Since the 1960s, the Tasman Sea has seen an average temperature increase of about 0.8°C, marking it as a significant indicator of global warming. Dr Edward Doddridge, an oceanographer from the University of Tasmania, underscores that a warming world will result in more frequent and intense ocean heatwaves, unless the consumption and burning of fossil fuels are reduced.

As the heatwave approaches, the Tasman Sea stands as a stark symbol of the pervasive impacts of climate change. The warming waters pose a threat to not only marine life but also the industries and communities that rely on them. The pressing challenge is to mitigate the impacts while addressing the root cause of the problem - our continued dependence on fossil fuels.

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As the global attention shifts towards space exploration, India's lunar mission, Chandrayaan-3, has notably outshined Russia's Luna-25. India has become the fourth nation to land a spacecraft on the moon, following the United States, the former Soviet Union, and China. Remarkably, India is also the pioneer in landing a spacecraft on the lunar south pole, a region rich in scientific interest due to its mineral wealth and water presence.

Founded in 1969, the Indian Space Research Organisation (ISRO) has been progressively advancing its space program. Initially aiming at designing and launching satellites for practical uses such as weather forecasting, flood mitigation, and telecommunications enhancement, ISRO has now achieved a significant milestone with the successful landing of Chandrayaan-3. The landing site, a relatively flat part of the Moon's surface, was captured by the lander's camera, marking a historic moment in India's space exploration journey.

The $75 million Chandrayaan-3 mission, costing less than half of Russia’s Luna-25, has received international acclaim. Figures like Russian President Vladimir Putin and Foreign Minister Sergei Lavrov have lauded India's achievement. The rover, Pragyaan, will gather crucial data and images from the landing site, providing tangible evidence for remote measurements and substantiating the existence of water on the Moon.

In contrast, Russia's Luna-25 mission, its first lunar mission in decades, ended in failure after the spacecraft crashed into the moon's surface. The crash followed an interruption in communication with the spacecraft, as reported by Russia's space agency, Roscosmos. The reason for the crash remains unclear with a specially formed commission set to investigate. The Luna-25 mission, launched on August 10 from the Vostochny Cosmodrome in Russia's Amur Oblast, aimed to study the moon's soil composition and the thin lunar exosphere for a year. Its failure is a significant setback for Russia's space program, which has been facing issues for decades.

The successful landing of Chandrayaan-3, juxtaposed with Luna-25's failure, marks a significant turn in the race between India and Russia to land on the moon's south pole. This achievement boosts India's confidence for potential missions to Mars and Venus. ISRO plans to launch a mission to study the sun in September and is preparing for a human space flight in 2024. The exploration of the south pole will contribute to a deeper understanding of lunar geology, particularly the presence of water ice on the moon.

The Chandrayaan-3's success was celebrated across India with firecrackers, dancing, and prayers at various places of worship. The event garnered widespread attention, with nearly 7 million people tuning in to the YouTube live stream. This success in space exploration is a testament to India's scientific and technological progress. As India's space program continues to flourish, the world eagerly awaits the findings of the Chandrayaan-3 mission and future Indian space explorations.

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The 15th BRICS Summit, an important convocation of leaders from Brazil, Russia, India, China, and South Africa, convened in Johannesburg, South Africa, from August 22 to 24. This was the first in-person assembly since the Covid-19 pandemic began. Distinguished attendees included Indian Prime Minister Narendra Modi, South African President Cyril Ramaphosa, Brazilian President Lula da Silva, and Chinese President Xi Jinping. Russia was represented by Foreign Minister Sergey Lavrov, with President Vladimir Putin participating virtually. The summit also welcomed over 50 leaders from various nations.

The BRICS group, a rising power representing the interests of developing countries, holds a significant capacity to shape global geopolitical and economic affairs. Despite accounting for 40% of the global population and a quarter of the world's GDP, the bloc has grappled with internal discord and a lack of unified vision. The recent summit aimed to tackle these issues and delineate a fresh path for the bloc's future.

A key topic of discussion was the potential expansion of the BRICS bloc. Over 40 countries, including Saudi Arabia, Indonesia, and Egypt, have expressed interest in joining, reflecting the bloc's perceived role as a counterbalance to Western dominance in international organizations like the United Nations, the International Monetary Fund, and the World Bank.

The summit also addressed the economic trials faced by BRICS nations. PM Modi underscored India's economic ascent, citing its status as the world's fastest-growing major economy with a projected rise to a 5 trillion dollar economy. South African President Ramaphosa advocated for a fundamental reform of global financial institutions. Conversely, some BRICS nations, including China, are experiencing economic slowdowns, and Russia is grappling with isolation due to the Ukraine conflict.

The summit explored strategies to decrease reliance on the US dollar and to expand the group. Countries under sanctions, such as Iran and Venezuela, have shown interest in joining BRICS to lessen their isolation and rejuvenate their economies. Saudi Arabia and the United Arab Emirates view BRICS as a vehicle to enhance their influence in global bodies. African nations like Ethiopia and Nigeria are attracted to BRICS due to its commitment to UN reforms that would amplify Africa's voice. Argentina, seeking a reconfiguration of international financial structures, has also shown interest in joining.

However, the bloc's tangible achievements, like the New Development Bank, have been hindered by slowed lending due to sanctions against Russia. While South Africa's trade with BRICS nations has grown since it joined the bloc, the increase is primarily due to imports from China. The bloc accounts for only a fifth of South Africa's total trade, with its trade deficit with BRICS partners escalating to $14.9 billion last year, a four-fold increase from 2010.

In conclusion, the 15th BRICS Summit has charted a new trajectory for the bloc's future. The summit's focus on expanding membership, reforming global financial institutions, and reducing dependence on the US dollar has reshaped BRICS's role in the global economy. As the Global South continues to ascend and gain influence, the decisions and actions of the BRICS nations will play a pivotal role in shaping the global economic landscape.

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