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09/03/2023 ---- 10/03/2023

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10.03.2023
THEME: ENVIRONMENT

An infectious virus has been found frozen alive in permafrost after 48.500 years

Permafrost is a layer of frozen soil, sediment, and rock that remains at or below freezing (0°C or 32°F) for at least two consecutive years. It is found in regions with sub-zero temperatures, typically at high latitudes in the Arctic and subarctic regions and in high-altitude areas. Permafrost is a critical component of the Earth's cryosphere. Its extent and characteristics impact global climate, ecosystems, infrastructure, and human communities. However, with the ongoing effects of global warming, permafrost is melting at an unprecedented rate. This permafrost thawing has severe implications for the environment and the global climate. The thawing of permafrost is a significant feedback loop in the climate system, and its effects can be felt far beyond the areas directly impacted by permafrost. As permafrost thaws, it releases trapped carbon dioxide and methane into the atmosphere, contributing to the greenhouse effect and further exacerbating global warming. Additionally, melting permafrost can cause physical instability of the land, leading to erosion, landslides, and changes in hydrology, which can have severe consequences for human communities and infrastructure in the affected regions.

Permafrost can also contain microorganisms such as viruses that, after lying dormant for ten thousand years, could endanger animal and human health. To better understand the risks of frozen viruses, Jean-Michel Claverie, an Emeritus professor of medicine and genomics at the Aix-Marseille University School of Medicine in Marseille, France, has tested earth samples taken from Siberian permafrost to see whether any viral particles contained therein are still infectious. He's searching for what he describes as "zombie viruses", — and he has found some. In his research recently published in the journal Viruses, Claverie and his team isolated several ancient virus strains from multiple permafrost samples taken from seven different places across Siberia and showed they could each infect cultured amoeba cells. That amoeba-infecting viruses are still infectious after so long, and this can be an indication of a potentially more significant problem. Traces of viruses and bacteria that can infect humans have been previously found preserved in permafrost. A lung sample from a woman's body exhumed in 1997 from permafrost in a village on the Seward Peninsula of Alaska contained genomic material from the influenza strain responsible for the 1918 pandemic. In 2012, scientists confirmed the 300-year-old mummified remains of a woman buried in Siberia had the genetic signatures of the viruses that cause smallpox. Understanding permafrost and its complex interactions with the environment is crucial for mitigating the impacts of climate change and adapting to a changing world. The best course of action would be to try and halt the thaw and the broader climate crisis and keep these hazards entombed in the permafrost for good.

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10.03.2023
THEME: POLITICS

Xi Jinping is formally elected president of China for a third mandate

Xi Jinping was born in Beijing, China, on June 15, 1953. His father, Xi Zhongxun, was a prominent revolutionary leader and one of the founding members of the Communist Party of China. In 1969, during the Cultural Revolution, Xi Jinping was sent to live and work in rural China as part of a government program to reeducate urban youth. He spent several years doing manual labour and studying Marxist ideology. In the 1970s, Xi Jinping returned to Beijing and began his political career in various government positions. He became the party secretary of Fujian Province in 1999. Then he moved on to become the party secretary of Zhejiang Province in 2002.

In 2007, Xi Jinping was elected to the Politburo Standing Committee, the highest decision-making body of the Communist Party of China. He was seen as a rising star in the party and was widely expected to succeed Hu Jintao as China's top leader. In 2012, he became the General Secretary of the Communist Party of China and the Chairman of the Central Military Commission, making him the supreme leader of China. He became the President of China in 2013. In 2018, the National People's Congress abolished term limits for the presidency, allowing Xi to remain in power indefinitely. Today March 10, Xi Jinping secured a precedent-breaking third term as president of China during a parliamentary session in which he tightened his control of the world's second-largest economy as it emerges from a COVID slump and diplomatic challenges mount. Nearly 3,000 members of China's rubber-stamp parliament, the National People's Congress (NPC), voted unanimously in the Great Hall of the People for the 69-year-old Xi in an election without any other candidate.

During his tenure, Xi has launched a massive anti-corruption campaign, cracked down on dissent and human rights activists, and promoted the Belt and Road Initiative, a global infrastructure development strategy. He has also increased China's military assertiveness in the South China Sea and Taiwan Strait and implemented policies to strengthen China's economy and enhance its technological capabilities. With this third term confirmation, Xi is taking China on a more authoritarian path since assuming control a decade ago, amid increasingly adversarial relations with the U.S. and its allies over Taiwan, Beijing's backing of Russia, trade and human rights. Russian President Vladimir Putin was among the first foreign leaders to congratulate Xi on his third term. The two sealed a "no limits" partnership between China and Russia in February last year, days before Russia invaded Ukraine.

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