In News:

The Red-Crowned Roofed Turtle (Batagurkachuga), once a widespread inhabitant of the Ganga and Brahmaputra river systems, is now facing an existential crisis. As a "jewel of the Ganga," its dwindling numbers reflect the deteriorating health of South Asia’s freshwater ecosystems.

Species Profile and Distinctive Features

The Red-Crowned Roofed Turtle is one of the three large freshwater species in the genus Batagur found in India. It is characterized by significant sexual dimorphism and vibrant coloration.

• Physical Appearance:
  • Males: Notably smaller than females, reaching only about half their length. They exhibit a striking reddish-orange head with a distinct black crown.
  • Shell: The carapace (upper shell) is greenish-brown with yellowish patterns, while the plastron (lower shell) is yellow with black markings.
• Diet: As an omnivorous species, it maintains a balanced diet consisting of various aquatic plants and small animals.
• Ecological Role:
  • Bio-indicator: Its presence or absence serves as a critical measure of river health.
  • Nutrient Cycling: It plays a vital role in the aquatic food web by facilitating the cycling of nutrients, which is essential for maintaining the productivity of the river ecosystem.

Geographical Distribution: A Shrinking Sanctuary

Historically, the species was a common sight across the Indo-Gangetic plain.

• Native Range: India, Bangladesh, and Nepal.
• Current Strongholds: While once widespread in the Ganga and Brahmaputra basins, its distribution is now severely restricted. Today, the National Chambal Sanctuary (straddling Rajasthan, Madhya Pradesh, and Uttar Pradesh) remains the only significant protected area with a viable breeding population.

Conservation Status and Legal Protection

Due to its rapid population decline, the Red-Crowned Roofed Turtle is afforded the highest levels of legal protection.

Major Threats to Survival

The decline of Batagurkachuga is a direct consequence of anthropogenic pressure on riverine habitats:

• Habitat Fragmentation: Construction of dams and barrages has altered river flow and destroyed sandbanks essential for nesting.
• Illegal Trade: Despite legal bans, they are targeted for the pet trade and international meat markets.
• Sand Mining: Extensive illegal sand mining on riverbanks destroys the nesting sites required for egg-laying.
• Pollution and Bycatch: Agricultural runoff, industrial waste, and accidental drowning in fishing nets (bycatch) continue to deplete adult populations.

In News:

Recently, a massive snow avalanche struck the Zojila Pass in Ladakh, resulting in the tragic death of seven individuals and injuries to several others. The incident occurred between Zero Point and Minimarg, once again highlighting the extreme vulnerability of this high-altitude transit corridor and the urgent need for all-weather infrastructure.

Geographical Profile: "The Mountain Pass of Blizzards"

Zojila Pass is one of the most treacherous yet vital mountain passes in the Indian Himalayas.

• Location: Situated in the Kargil district of Ladakh, it serves as the natural gateway between the Kashmir Valley and the Ladakh region.
• Altitude: Approximately 11,650 feet (3,528 meters) above sea level.
• Mountain Range: It lies within the Greater Himalayan Range (specifically the Zanskar range).
• Connectivity: It is a critical link on National Highway 1 (NH-1), connecting Srinagar, Kargil, and Leh.
• Seasonal Closure: Due to heavy snowfall and sub-zero temperatures (dropping below -400C), the pass traditionally remains closed for nearly six months a year, isolating Ladakh from the rest of the country.

Historical and Strategic Significance

The pass is not merely a transport route; it is a pillar of India’s national security.

• Operation Bison (1948): During the Indo-Pakistan War of 1947–48, Pakistani-backed militias seized the pass to capture Ladakh. On November 1, 1948, the Indian Army executed Operation Bison, a daring assault that utilized M5 Stuart light tanks. This remains a historic military feat as the highest altitude at which armor had ever operated in combat at that time.
• Military Logistics: It is the primary artery for the movement of troops and heavy equipment to the Line of Actual Control (LAC) with China and the Siachen Glacier region.
• Economic Lifeline: It ensures the supply of essential commodities (fuel, food, and medicine) to the civilian population of Ladakh.

Understanding the Hazard: Avalanches

• Definition: An avalanche is a rapid flow of snow down a slope, triggered when the weight of the snowpack exceeds the friction holding it in place.
• Contributing Factors:
  • Steep Slopes: Slopes without trees or large rocks lack the "anchors" needed to hold snow.
  • Weak Layers: Fresh snowfall over an icy or unstable "crust" creates a sliding plane.
  • Weather Fluctuations: Rapid temperature changes or heavy blizzards add weight and reduce cohesion.
• Impact: Avalanches can travel at speeds of 80–300 km/h, burying vehicles and infrastructure instantly.

In News:

The Wildlife Management Authority, in collaboration with the Coringa Wildlife Sanctuary, has successfully conserved nearly 20,000 Olive Ridley turtle eggs on Hope Island in Kakinada Bay, Andhra Pradesh. This highlights the growing importance of the East Coast, beyond Odisha, as a critical habitat for marine conservation.

Hope Island: A Sanctuary in Kakinada Bay

Hope Island serves as a vital nesting ground in Andhra Pradesh. Conservationists utilize the in-situ conservation method, where eggs are protected in their natural nesting environment to ensure higher hatching success and maintain the ecological balance of the bay.

Species Profile: Olive Ridley Turtles (Lepidochelys olivacea)

• Physical Characteristics: They are the world’s smallest and most abundant sea turtles. They are recognized by their unique heart-shaped, olive or grayish-green carapace.
• Habitat: Primarily found in the tropical waters of the Pacific, Indian, and Atlantic Oceans, inhabiting both the open sea and coastal regions.
• Diet: Being omnivorous, they feed on a variety of marine life including jellyfish, snails, crabs, and shrimp/algae.
• Behavioral Phenomemon (Arribada): They are famous for "Arribada"—a Spanish term for "arrival"—which refers to the synchronized mass nesting where thousands of females come ashore simultaneously to lay eggs (approx. 100–140 eggs per female).

Distribution and Key Indian Nesting Sites

The turtles undertake massive migrations from the Pacific toward the Indian coast, typically arriving between November and December and staying until April–May.

• Odisha: Home to the world's largest nesting sites, including Gahirmatha Marine Sanctuary, Rushikulya, and the Devi River mouth.
• Andhra Pradesh: Increasingly significant sites in Kakinada (Hope Island) and Visakhapatnam.
• Others: Andaman and Nicobar Islands and parts of the Tamil Nadu coast.

Conservation Status and Legal Framework

To mitigate the decline in population, Olive Ridleys are afforded the highest level of protection:

• IUCN Red List: Vulnerable.
• Wildlife Protection Act (WPA), 1972: Schedule I (highest protection in India).
• CITES: Appendix I (prohibits international trade).
• CMS (Convention on Migratory Species): Protected under this global intergovernmental treaty.

Threats and Protection Measures

Despite legal safeguards, the species faces multifaceted challenges:

• Major Threats:
  • Bycatch: Accidental entanglement in trawl and gill nets is the leading cause of mortality.
  • Poaching: Illegal trade of eggs and meat.
  • Habitat Loss: Coastal erosion and light pollution (which disorients hatchlings).
• Key Conservation Initiatives:
  • Operation Olivia: An annual mission by the Indian Coast Guard to enforce seasonal fishing bans and protect nesting sites.
  • Turtle Excluder Devices (TEDs): Mandated for use in trawl nets to allow turtles to escape while retaining the fish catch.
  • Tagging Programs: Using metal tags to track migration patterns and nesting frequency.

In News:

The Union Government is set to revamp the Pradhan Mantri Kisan Urja Suraksha evamUtthaanMahabhiyan (PM-KUSUM) scheme. With the current phase expiring in March 2026, the upcoming PM-KUSUM 2.0 aims to address structural gaps, specifically by incorporating Battery Energy Storage Systems (BESS) to harmonize solar generation with agricultural power demand.

Understanding PM-KUSUM: Evolution and Structure

Launched in 2019 by the Ministry of New and Renewable Energy (MNRE), PM-KUSUM is a "triple-win" initiative designed to provide energy security to farmers, improve DISCOM finances, and contribute to India’s climate goals (COP30).

Core Components of the Scheme:

• Component A: Installation of decentralized ground-mounted, grid-connected solar power plants (up to 2 MW) on barren or fallow land.
• Component B: Deployment of standalone solar-powered agriculture pumps to replace diesel-based irrigation in off-grid areas.
• Component C: Solarization of existing grid-connected agriculture pumps through two sub-models:
  • Individual Pump Solarization (IPS)
  • Feeder Level Solarization (FLS): Solarizing the entire electricity feeder to improve efficiency at scale.

Funding Model (Shared Responsibility):

• Central Government: 30% subsidy.
• State Government: 30% subsidy.
• Farmer Contribution: 40% (often supported by bank loans).

(Note: For North Eastern, Hilly, and Island regions, the Central subsidy can go up to 50%).

The Shift to PM-KUSUM 2.0: Why Battery Storage?

The primary limitation of the current scheme is the temporal mismatch between solar energy generation and agricultural demand—a phenomenon often referred to as the "Duck Curve" challenge.

• The Mismatch: Solar power peaks around midday. However, agricultural irrigation demand often starts early in the morning and continues well after sunset.
• The Solution (BESS): Integrating batteries allows the storage of surplus solar energy generated during peak hours. This stored power can then be discharged during non-solar hours (evening/early morning), ensuring a reliable and round-the-clock (RTC) power supply for farmers.
• Policy Debate: The Ministry of Power has proposed a 4-hour storage capacity, whereas the MNRE suggests a 2-hour capacity. Discussions with the Ministry of Finance are ongoing to finalize the subsidy structure for these batteries.

Progress and Challenges (As of 2026)

While the program has made significant strides, it currently trails its ambitious target of 34.8 GW.

In News:

NASA is going to launch the Artemis II mission.

Mission Overview: Artemis II

Artemis II is a 10-day lunar flyby mission designed to test the integrated capabilities of NASA’s deep-space exploration systems. Unlike the later landing missions, Artemis II will follow a "free-return trajectory."

• Spacecraft: Orion Spacecraft.
• Launch Vehicle:Space Launch System (SLS), the most powerful rocket ever built, producing 8.8 million pounds of thrust (15% more than the Apollo-era Saturn V).
• Trajectory: The crew will travel approximately 7,400 km beyond the far side of the Moon. They will utilize a "gravity assist" (slingshot) maneuver, using lunar gravity to return to Earth without requiring a main engine burn to reverse course.

A Crew of "Firsts"

The four-person crew represents a significant departure from previous lunar missions, emphasizing diversity and international cooperation:

• Reid Wiseman (Commander): NASA veteran.
• Victor Glover (Pilot): First person of color to travel beyond Low-Earth Orbit (LEO).
• Christina Koch (Mission Specialist): First woman to reach the Moon’s vicinity.
• Jeremy Hansen (Mission Specialist): Representing the Canadian Space Agency (CSA), he is the first non-American to leave Earth's orbit.

Technological and Scientific Frontiers

Artemis II serves as a high-stakes laboratory for several cutting-edge technologies:

• Laser Communications (O2O): Testing infrared lasers to transmit data at 260 Mbps, enabling 4K video streaming from deep space.
• AVATAR Experiment: Using "organ-on-a-chip" technology to study the real-time effects of radiation and microgravity on human cells.
• Global CubeSats: Deployment of small satellites from Germany, Argentina, South Korea, and Saudi Arabia to study space weather and lunar shielding.

Evolution of Lunar Missions: Apollo vs. Artemis

While the Apollo missions were a Cold War-era demonstration of technological supremacy, the Artemis program is built for endurance and deep-space logistics.

The Global Lunar Landscape: Past to Future

The Moon has become a focal point for global geopolitics and "New Space" commercial ventures.

A. Historical Context (The Cold War Era)

• Luna 9 (USSR, 1966): First soft landing.
• Apollo 11 (USA, 1969): First humans on the Moon.
• Luna 24 (USSR, 1976): Last mission of the 20th century to return soil samples.

B. The Modern Era (The "New Race")

• Chang’e 4 (China, 2019): First landing on the Far Side of the Moon.
• Chandrayaan-3 (India, 2023): First nation to land near the Lunar South Pole, confirming the presence of sulfur.
• SLIM (Japan, 2024): Demonstrated "pinpoint" landing technology (within 100 meters).
• IM-1 Odysseus (USA/Private, 2024): First successful commercial landing.

C. Future Roadmap (2026–2028)

The focus is shifting toward In-Situ Resource Utilization (ISRU)—mining lunar ice for fuel and oxygen.

• Griffin-1/VIPER (2026): US mission to scout for water ice at the South Pole.
• Chang’e 7 (2026): China’s search for water in shadowed craters using a "flying" detector.
• Artemis IV (2028): Expected first crewed landing of the Artemis program to establish a permanent base.