Current Affairs

Current Affairs — 21 June 2026

21 June 2026

IIT-Delhi study finds human activity drives India's 'wild' weather

A new study by IIT-Delhi and KSMDB College Kollam, published in Environmental Research Letters, provides dispositive evidence that human activity is the primary driver of India's increasingly concentrated rainfall and violent floods. Researchers used a 'fingerprinting' technique on rainfall data from 1905 to 2014 to distinguish human influence from natural variations. The study found that greenhouse gas forcing is a dominant driver of extreme precipitation in India's core monsoon zone, particularly West Central India. It also warns that as air pollution reduces, the 'unmasked' full force of greenhouse gas warming could lead to a surge in extreme rainfall events.

  • Human activity, specifically greenhouse gas forcing, is identified as the primary driver of extreme rainfall in India.
  • The 'fingerprinting' technique helped differentiate human-induced changes from natural weather cycles like El Niño.
  • A contest between warming greenhouse gases and cooling aerosols influences rainfall patterns, especially in West Central India.
Exam Points
  • The study was conducted by researchers from IIT-Delhi and KSMDB College in Kollam.
  • Findings were published in Environmental Research Letters.
  • Rainfall data from 1905 to 2014 was analysed.
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What a 'super' El Niño might mean for India's monsoon

The U.S. NOAA confirmed an El Niño has formed, with a 63% chance of becoming a 'very strong' event. This article explores how such an event might impact India's monsoon, which has already seen a 35% deficit in June rainfall. El Niño, a periodic warming of the equatorial Pacific, tends to weaken the South Asian monsoon. Historically, 'very strong' El Niño years (e.g., 1972-73, 1982-83, 2015-16) have often correlated with severe droughts in India, though the 1997-98 event was an exception due to the Indian Ocean Dipole. The current forecast suggests the Indian Ocean Dipole may not be strong enough to counter the Niño's drying effect this year.

  • A 'very strong' El Niño event is forecast, raising concerns for India's monsoon.
  • El Niño is the periodic warming of the central and eastern equatorial Pacific, weakening the South Asian monsoon.
  • Historical data shows a strong correlation between El Niño years and deficient rainfall, often leading to droughts in India.
Exam Points
  • The U.S. National Oceanic and Atmospheric Administration (NOAA) confirmed the El Niño.
  • There is about a 63% chance of it strengthening into a 'very strong' event.
  • IMD's D.S. Pai classifies El Niño strength based on sea-surface temperature departures (0.5-1°C weak, >2°C very strong).
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Microsoft introduces pay-as-you-go model for AI agents

Microsoft has introduced a pay-as-you-go model for its AI agents, shifting from traditional fixed software subscriptions to usage-based pricing. This move aligns AI services with the economics of cloud computing, where customers pay for resources as they consume them. The company aims to address the mismatch between highly variable AI usage among employees and flat monthly fees, allowing customers to experiment without large commitments. While offering flexibility, this model could also lead to unpredictable costs, a challenge faced by cloud computing users. Microsoft's experience with Azure's metered consumption model positions it well for this transition.

  • Microsoft is shifting its AI agent billing from fixed subscriptions to a pay-as-you-go model.
  • The new pricing strategy aligns with the consumption-based economics of cloud computing.
  • This model addresses the variability in AI usage among different users within an organization.
Exam Points
  • Microsoft introduced a 'pay-as-you-go' model for its AI agents.
  • The model moves away from fixed licence subscriptions.
  • It is compared to the economics of cloud computing.
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New seismic hazard spotted in Japan's 2011 quake

Scientists have identified a new seismic hazard following the 2011 Japan earthquake. Fifteen minutes after the main shock, the ground across Japan shifted eastward by up to 6 mm. Using satellite data, researchers discovered this movement was triggered by ScS waves. These seismic waves travel down from the earthquake source, bounce off the planet's core, and return to the surface, hitting Japan's tectonic plate boundaries almost simultaneously. This finding adds a new dimension to understanding earthquake impacts and hazards.

  • A new seismic hazard was identified in Japan following the 2011 earthquake.
  • Ground across Japan shifted eastward by up to 6 mm, 15 minutes after the main shock.
  • This movement was triggered by ScS waves, which travel through the Earth's core.
Exam Points
  • The event occurred after the 2011 Japan earthquake.
  • Ground shifted east by up to 6 mm.
  • The movement was triggered by ScS waves.
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War in Ukraine hit different mammals differently

Researchers used camera traps in the Chornobyl Exclusion Zone to study the impact of the 2022 Russian occupation on animal activity, comparing it to 2021 peacetime data. The study found that mammals quickly adjusted their habits to survive the conflict. For instance, red deer and foxes significantly reduced their nocturnal activity, while roe deer activity dropped during intense combat. Conversely, brown hares were spotted more often, and while wild boars avoided military sites, lynx and foxes remained closer to human settlements, demonstrating varied adaptive strategies among species.

  • The study used camera traps to compare animal activity during wartime and peacetime in Ukraine.
  • Mammals in the Chornobyl Exclusion Zone adapted their habits quickly to the conflict.
  • Different species showed varied responses, with some reducing activity and others increasing or shifting locations.
Exam Points
  • The study was conducted in the Chornobyl Exclusion Zone in Ukraine.
  • Data from the 2022 Russian occupation was compared to 2021 peacetime data.
  • Species like red deer, foxes, roe deer, brown hares, wild boars, and lynx were observed.
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Plague deadly even before farming's rise

Scientists have uncovered evidence of plague outbreaks among hunter-gatherers near Lake Baikal in Siberia dating back 5,500 years. This discovery challenges the long-held belief that the plague only became a major threat after humans began living in dense, crowded farming communities. The team analyzed ancient DNA, estimating an infection rate of 39%. Interestingly, the ancient plague strains lacked the specific genes needed for flea-borne transmission, suggesting that the disease spread directly from person to person during this prehistoric period, indicating a different transmission mechanism than later outbreaks.

  • Evidence suggests plague outbreaks occurred among hunter-gatherers 5,500 years ago in Siberia.
  • This challenges the traditional view that plague became a major threat only with dense farming communities.
  • Ancient DNA analysis revealed an estimated infection rate of 39% in the prehistoric population.
Exam Points
  • Plague outbreaks were found near Lake Baikal in Siberia.
  • The evidence dates back 5,500 years.
  • Ancient DNA analysis estimated an infection rate of 39%.
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Why do recessive traits resurface?

Recessive traits from older generations can suddenly resurface in an individual due to the principles of genetics. Every person inherits two copies of most genes, one from each parent. Recessive alleles only express themselves when two copies are present. An individual with one recessive and one dominant allele is a 'carrier' and does not display the trait. If two carriers have a child, there's a chance both parents pass on their recessive allele, leading to the child inheriting two copies and thus expressing the trait. This phenomenon is governed by the random shuffling and distribution of genes during the formation of eggs and sperm.

  • Recessive traits are expressed only when an individual inherits two copies of the recessive allele.
  • A 'carrier' possesses one recessive and one dominant allele, showing no sign of the trait.
  • Recessive traits resurface when two carrier parents pass on their recessive alleles to their child.
Exam Points
  • Genes work in pairs, one from each parent.
  • Recessive alleles require two copies for expression.
  • Dominant alleles express themselves even with one copy.
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Main provisions of U.S.-Iran agreement

A potential U.S.-Iran agreement, mediated by Oman and Qatar, focuses on a prisoner exchange and the release of $6 billion in frozen Iranian funds. While not a full nuclear deal, it aims to de-escalate tensions and ensure Iran does not enrich uranium beyond 60%. The agreement involves transferring Iranian funds from South Korea to Qatar, accessible only for humanitarian purposes. The U.S. views this as a step towards stability, while Iran sees it as a diplomatic victory. The deal faces criticism from Israel and some U.S. lawmakers, who fear it empowers Iran and does not adequately address its nuclear ambitions or regional activities.

  • The agreement primarily involves a prisoner exchange and the release of $6 billion in frozen Iranian funds.
  • Oman and Qatar played crucial mediating roles in facilitating the discussions.
  • The released funds are restricted to humanitarian purposes, aiming to prevent their use for illicit activities.
Exam Points
  • The agreement involves the release of $6 billion in Iranian funds.
  • Five American and five Iranian prisoners are part of the exchange.
  • Oman and Qatar mediated the agreement.
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Why India's statistical databases upgraded?

India's statistical databases are undergoing upgrades to reflect the evolving economy and improve accuracy. The Ministry of Statistics and Programme Implementation (MoSPI) periodically revises base years and methodologies for key indicators like CPI, WPI, IIP, and GDP. This is crucial because economic structures change, with services gaining prominence and consumption patterns shifting. The upgrades aim to capture these changes, provide a more realistic picture of the economy, and ensure data remains relevant for policy-making. Challenges include integrating data from the informal sector and accurately measuring new economic activities, but these revisions are essential for maintaining the integrity and utility of national statistics.

  • India's statistical databases are being upgraded to reflect changes in the economy and improve data accuracy.
  • Base years and methodologies for key economic indicators are periodically revised by MoSPI.
  • The revisions account for shifts in consumption patterns and the growing share of the services sector.
Exam Points
  • The Ministry of Statistics and Programme Implementation (MoSPI) is responsible for database upgrades.
  • Key indicators include Consumer Price Index (CPI), Wholesale Price Index (WPI), Index of Industrial Production (IIP), and Gross Domestic Product (GDP).
  • The base year for GDP and IIP was revised to 2011-12.
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G7: A platform for the globalised elite

The G7, originating as an informal forum in the 1970s, has evolved into a key platform for global economic and political coordination. Initially focused on economic issues, it expanded to address broader challenges like climate change, security, and development. Despite its influence, the G7 faces criticism for its exclusivity and lack of representation from emerging economies, leading to the rise of the G20. The group continues to play a role in addressing contemporary crises, such as the war in Ukraine and global supply chain disruptions, but its long-term relevance in a multipolar world remains a subject of debate, with calls for more inclusive global governance structures.

  • The G7 originated in the 1970s as an informal forum for economic coordination among leading industrialised nations.
  • It evolved to address a wider range of global challenges, including security, climate change, and development.
  • The G7 faces criticism for its exclusivity and lack of representation from emerging economies.
Exam Points
  • The G7 (Group of Seven) originated in the 1970s.
  • The first summit was held in Rambouillet, France, in 1975.
  • Russia joined in 1997, making it the G8, but was suspended in 2014.
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Gen. Dhiraj Seth assumes command of Army's Western Command

Lt. Gen. Dhiraj Seth has assumed command of the Indian Army's Western Command, bringing extensive experience in diverse operational and training environments. His career includes significant roles in counter-insurgency operations, mechanised warfare, and various staff appointments. A graduate of prestigious military institutions, Gen. Seth is known for his focus on technology integration, joint operations, and fostering innovation within the armed forces. His leadership is expected to enhance the command's operational readiness and strategic capabilities, particularly in an era of evolving security challenges and technological advancements.

  • Lt. Gen. Dhiraj Seth has taken over as the General Officer Commanding-in-Chief of the Western Command.
  • He has extensive experience in counter-insurgency operations and mechanised warfare.
  • His career includes various command, staff, and instructional appointments.
Exam Points
  • Lt. Gen. Dhiraj Seth assumed command on June 30.
  • He is the General Officer Commanding-in-Chief of the Western Command.
  • He is an alumnus of the National Defence Academy and Indian Military Academy.
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WhatsApp: Mass messaging and more

WhatsApp has evolved beyond a simple messaging app into a versatile platform for mass communication, business interactions, and even financial transactions. With over 15 crore users in India, it has become a significant tool for social and economic engagement. The platform's end-to-end encryption offers privacy, but its widespread use also raises concerns about the spread of misinformation and potential misuse. WhatsApp's integration of features like UPI payments and business accounts highlights its ambition to become a comprehensive digital ecosystem, impacting how individuals and businesses connect and transact in India.

  • WhatsApp has evolved into a versatile platform for mass messaging, business, and financial transactions.
  • It has over 15 crore users in India, making it a dominant communication tool.
  • The platform's end-to-end encryption provides privacy for user communications.
Exam Points
  • WhatsApp has over 15 crore users in India.
  • It supports UPI (Unified Payments Interface) payments.
  • WhatsApp Pay was piloted in 2016.
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Community-led water conservation revitalises Rayadurgam, Andhra Pradesh

Rayadurgam in Andhra Pradesh, once known for chronic water scarcity, is undergoing a significant transformation through community-led water conservation and afforestation efforts. The Ananta Neeru Sanrakshanam Project, involving over 400 villagers and the Forest Department, has restored traditional water bodies through desilting and planted thousands of native saplings. This scientific approach has enhanced groundwater recharge, improved green cover, and boosted local biodiversity, benefiting agriculture and wildlife. The initiative has garnered national recognition and serves as a model of resilience for water-stressed regions, demonstrating how community participation and ecological restoration can rewrite the story of a parched land.

  • Rayadurgam district in Andhra Pradesh is being revitalized through community-led water conservation and afforestation.
  • The Ananta Neeru Sanrakshanam Project involves over 400 villagers and the Forest Department.
  • Traditional water bodies are restored through desilting, enhancing groundwater recharge and storage capacity.
Exam Points
  • The project is implemented in Rayadurgam, Anantapur district, Andhra Pradesh.
  • The initiative is called the Ananta Neeru Sanrakshanam Project.
  • Over 400 villagers are involved in the project.
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Government advertising: Puffery for advertisers, not achievers

This article criticizes the government's substantial spending on advertisements, arguing that it often serves as self-promotion rather than genuine communication of achievements. It highlights a lack of transparency and accountability in how public funds are used for these campaigns, which frequently exaggerate progress. The author suggests that such 'puffery' diverts resources that could be better spent on actual development. The piece calls for greater scrutiny of government advertising expenditure and a shift towards more substantive governance rather than image-building.

  • Government spending on advertisements is substantial and often lacks transparency.
  • Advertisements frequently exaggerate government achievements, serving as self-promotion.
  • There is a concern about the accountability of public funds used for such campaigns.
Exam Points
  • The Ministry of Information and Broadcasting oversees government advertising.
  • The Comptroller and Auditor General (CAG) has previously flagged issues with ad spending.
  • The Directorate of Advertising and Visual Publicity (DAVP) is involved in government campaigns.
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New government, old playbook: Continuity in Indian politics

The article argues that despite changes in government, Indian politics often follows an 'old playbook' characterized by recurring themes like centralisation of power, social engineering, and economic challenges. It traces this continuity from Jawaharlal Nehru to Narendra Modi, highlighting how different leaders have adopted similar strategies to consolidate power, manage social divisions, and pursue economic reforms. The piece suggests that while the faces in power change, the underlying political dynamics and governance challenges often persist, making it difficult for new governments to truly break from historical patterns and implement transformative change without falling back on established methods.

  • Indian politics exhibits significant continuity in strategies and challenges across different governments.
  • Centralisation of power is a recurring theme from Nehru to Modi.
  • Social engineering and coalition politics have been consistent features of governance.
Exam Points
  • The article discusses leaders from Jawaharlal Nehru to Narendra Modi.
  • Key historical events mentioned include 1969 bank nationalisation and 1991 economic reforms.
  • The UPA (United Progressive Alliance) and NDA (National Democratic Alliance) eras are referenced.
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Yoga for healthy ageing: Adding life to years

This article highlights the profound benefits of Yoga for healthy ageing, emphasizing its role in enhancing physical, mental, and spiritual well-being, particularly for the elderly. As the global population ages, Yoga offers a holistic approach to address associated health challenges, promoting flexibility, strength, balance, and cognitive function. It helps manage chronic diseases, reduce stress, and improve quality of life, enabling older adults to maintain independence and vitality. The recognition of Yoga by international bodies like the UN and WHO underscores its potential as a valuable tool for public health strategies aimed at supporting an ageing society.

  • Yoga offers a holistic approach to healthy ageing, benefiting physical, mental, and spiritual well-being.
  • It helps address the challenges of an ageing global population by promoting active and independent living.
  • Regular Yoga practice improves flexibility, strength, balance, and cognitive function in older adults.
Exam Points
  • June 21 is observed as the International Day of Yoga.
  • The United Nations General Assembly adopted a resolution for International Day of Yoga in 2014.
  • The World Health Organization (WHO) promotes Yoga for health.
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Congress needs renewal, not a cult leader

The article argues that the Indian National Congress party is in dire need of renewal, moving away from its traditional reliance on a single family and personality cults. It critiques the party's failure to adapt to modern political realities, connect with voters on substantive issues, and foster internal democracy. The author suggests that for the Congress to revive, it must develop a clear ideology, empower grassroots leadership, and focus on policy-driven engagement rather than dynastic appeal. The piece emphasizes that true renewal requires a fundamental shift in approach, embracing democratic principles and a forward-looking vision to regain public trust and political relevance.

  • The Congress party is criticized for its reliance on dynastic leadership and personality cults.
  • The party needs to foster internal democracy and empower grassroots leaders for revival.
  • It has failed to connect with voters on substantive issues and adapt to modern political realities.
Exam Points
  • The article discusses the Indian National Congress party.
  • It references the party's electoral defeats in 2014 and 2019.
  • Rahul Gandhi and Priyanka Gandhi are mentioned in the context of dynastic leadership.
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Not boys versus girls: Addressing gender stereotypes

This opinion piece delves into how deeply ingrained gender stereotypes, often reinforced from childhood, limit individual potential and perpetuate societal inequalities. It argues that the traditional 'boys versus girls' narrative shapes expectations, choices, and roles, preventing children from exploring their full capabilities irrespective of gender. The author advocates for a conscious effort to challenge these biases in upbringing and education, fostering an environment where children are encouraged to pursue their interests freely. By dismantling these stereotypes, society can move towards greater equity and allow individuals to thrive based on their unique talents rather than prescribed gender roles.

  • Gender stereotypes are deeply ingrained from childhood, shaping individual choices and societal roles.
  • The traditional 'boys versus girls' narrative limits children's potential and reinforces inequalities.
  • Societal conditioning often dictates what is considered appropriate for each gender.
Exam Points
  • The article discusses the impact of societal conditioning on gender roles.
  • It highlights the importance of challenging gender stereotypes from childhood.
  • The piece advocates for fostering an equitable and inclusive society.
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