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GS Paper: GS3-18.Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment.

  • Specie in news: Megamouth Shark

    Megamouth Shark

    Central Idea

    • In a historic moment for marine biology, a pregnant megamouth shark, a rare and elusive deepwater species, was discovered washed up on a beach in the Philippines.
    • This is only the 60th ever seen and the first ever observed to be pregnant.

    About Megamouth Shark

    Details
    Scientific Name Megachasma pelagios
    Discovery First discovered in 1976 off the coast of Hawaii.
    Appearance Large mouth, bulbous head, rubbery lip, dark grey/black body with a white underbelly.
    Size Up to 5.5 meters (18 feet) in length.
    Diet Filter feeder, consuming plankton, jellyfish, and small fish.
    Habitat Deepwater species, found at depths of 150 to 1,000 meters (490 to 3,280 feet).
    Behavior Rarely seen, swims with mouth open to filter food.
    Reproduction Presumed to be ovoviviparous, but details are largely unknown.
    Distribution Wide but rare distribution in the Atlantic, Pacific, and Indian Oceans.
    Conservation Status Least Concerned (IUCN)
    Scientific Interest Valued for its unique anatomy and role in the deep-sea ecosystem.

     

  • Species in news: Doubled-humped Camels

    camel

    Central Idea

    • Indian Army has inducted double-humped camels for patrolling and logistical support along the Line of Actual Control (LAC) in Eastern Ladakh.

    About Double-Humped Camels

    • The Bactrian camel (Camelus bactrianus), is also known as the Mongolian camel, domestic Bactrian camel or two-humped camel.
    • Their name comes from the ancient historical region of Bactria.
    • It is a large even-toed ungulate native to the steppes of Central Asia.
    • It has two humps on its back, in contrast to the single-humped dromedary.
    • The humps are plump and pliable. They store fat, which can be converted into water and energy when food and water resources are scarce during harsh winters.
    • A small population of Bactrian camel exists in the Nubra valley of Ladakh.

    Significance of deployment

    • These camels serve to patrol the LAC and provide logistical aid to troops in the difficult, barren landscape of Eastern Ladakh.
    • They can carry 170 kg and patrol up to 15 km without rest, surpassing the load capacity of mules previously used by the army.
    • The Army’s 14 corps is deploying these camels in strategic areas like Depsang and Daulat Beg Oldie (DBO) along the LAC.

    Try this PYQ from the 2019 CS Prelims:

    Q. Consider the following statements:

    1. Asiatic lion is naturally found in India only.
    2. Double-humped camel is naturally found in India only.
    3. One-horned rhinoceros is naturally found in India only.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

    [wpdiscuz-feedback id=”4pzhmg3s4f” question=”Please leave a feedback on this” opened=”1″]Post your answers here.[/wpdiscuz-feedback]

  • New species: Abelmoschus Odishae

    odisha

    Central Idea

    • A scientist from the Indian Council of Agricultural Research (ICAR) recently discovered a new plant species of ‘wild okra’ named ‘Abelmoschus Odishae’.

    Wild Okra (Abelmoschus Odishae)

    • Its discovery occurred in a humid deciduous forest within the Banspal block of Keonjhar district, in Odisha.
    • This plant holds potential for use in hybridization to develop improved varieties with enhanced disease resistance.
    • It could significantly contribute to broadening the genetic diversity of okra.
    • Characteristics:
      1. This perennial shrub reaches up to 5 meters in height and features a densely hispid, spiny stem with backward-facing hairs.
      2. The plant is adorned with large, vibrant yellow flowers.
      3. Its seeds are nearly kidney-shaped, with short, robust, non-spiral trichomes.
      4. The seeds exhibit a high viability rate of 95 percent.

    About Okra

    • Commonly referred to as gumbo or ladies’ fingers, okra is a vegetable favored in warm climates.
    • Originating from the Eastern Hemisphere’s tropics, it is now extensively grown or found naturally in the tropical and subtropical regions of the Western Hemisphere.
    • Rich in minerals, vitamins, antioxidants, and fiber, okra is a nutritious choice.
    • The vegetable is known for its mild flavor and distinctive texture, featuring a peach-like fuzz on its exterior and small, consumable seeds inside.

  • Asola Bhatti Wildlife Sanctuary

    asola bhatti

    Central Idea

    • The Delhi High Court is considering staying a forest department ‘Walkathon’ event in the Asola Bhatti Wildlife Sanctuary.

    About Asola Bhatti WLS

    • Location: Situated in the southern part of Delhi and extends into Faridabad and Gurugram districts of Haryana.
    • Spread: Occupies 32.71 sq. km on the Aravalli hill range’s Southern Delhi Ridge, bordering Delhi and Haryana.
    • Connectivity: Forms a part of Rajasthan’s Sariska Tiger Reserve to the Delhi Ridge.
    • Vegetation: Classified under Northern Tropical Thorn Forests.
    • Plant Adaptations: Features plants with xerophytic characteristics like thorns, wax-coated and succulent leaves.
    • Flora: Characterized by the presence of the exotic Prosopis juliflora and the native Diospyros montana.
    • Wildlife Diversity: Home to species such as Golden Jackals, Striped-Hyenas, Indian Crested-Porcupines, Civets, Jungle Cats, various snakes, Monitor Lizards, and Mongoose.

  • Specie in news: Lantana Camara

    Lantana Camara

    Central Idea

    • In an exhibition in Bengaluru, sculptures of elephants made from Lantana camara gained popular attraction.

    About Lantana Camara

    • Lantana camara, commonly known as lantana, belongs to the verbena family (Verbenaceae) and originates from the American tropics.
    • Lantana was introduced to India in the early 19th century as an ornamental plant during the British colonial period. Its colorful flowers made it popular in gardens.
    • This shrub has the ability to spread across forest floors, climb like a creeper over trees, and easily intertwine with native vegetation.
    • Lantana is highly adaptable, thriving in diverse ecosystems.

    Impacts on Local ecosystem

    • Lantana’s invasive nature poses a serious threat to native flora and fauna. It competes with native plants for resources, often leading to a reduction in native biodiversity.
    • It forms dense thickets that alter the structure of habitats that impede the movement of animals and change the microhabitat conditions, such as light availability and soil composition.
    • It can invade agricultural land, reducing crop yields, and can also infest pastures, impacting grazing for livestock.
    • It is toxic to livestock and can cause health issues if ingested. This adds to the economic burden for farmers who need to ensure their animals do not graze on lantana-infested land.
    • The plant increases the risk of fire in the ecosystems it invades because it forms dense thickets that can easily catch and spread fire.

  • ‘Music Frog’ Species discovered in Arunachal Pradesh

    Music Frog

    Central Idea

    • Scientists have identified a new species of ‘music frog’, named Nidirana noadihing, in Arunachal Pradesh, India.

    Nidirana noadihing: The Music Frog

    • Location: It came from the place, Noa-Dihing River, from where the specimens were collected.
    • Size: The frogs grow up to 6 cm, with males measuring between 1.8 to 2.3 inches and females between 2.4 to 2.6 inches.
    • Appearance: They have a robust body, a rounded snout, smooth skin with bony protrusions on their backs, and a pale cream line bordered with dark brown running down their bodies.
    • Eye Features: The frogs have irregularly shaped spots on their eyelids, moderately large eyes with gold-rimmed pupils, and dark brown irises with a golden spackle.
    • Colouration: Their throat, forelimbs, thighs, and lower legs are light brown and pinkish, while their groin and the outside of their thighs are pale yellow with irregular dark olive patches.

    Habitat and Behavior

    • Habitat: Nidirana noadihing inhabits swamps, ponds, and paddy fields, often constructing nests for egg-laying.
    • Vocalization: The species is distinguished by its unique call, which led to its discovery near the Noa-Dihing river.

  • Fleet electrification to tackle urban pollution

    Adani to deploy 400 BYD Electric Trucks at 4 Indian ports - India Shipping News

    Central idea

    The central idea revolves around the urgent need to address worsening air quality in Indian cities, focusing on the critical role of transitioning to electric trucks to mitigate PM2.5 pollution. Despite challenges like upfront costs, the article emphasizes the imperative of swift action, proposes green freight corridors as a demonstration, and calls for a concerted effort involving public and private sectors to accelerate the transition and ensure a healthier urban environment.

    Key Highlights:

    • Air Quality Crisis: Rising air pollution in Indian cities necessitates prioritizing mitigation strategies, focusing on PM2.5 and PM10 pollution from the transport and construction sector.
    • Truck Fleet Expansion: The significant increase in the truck fleet poses a threat to air quality, and the transition to electric trucks is crucial for sustainability and energy security.

    Challenges:

    • Air Pollution Impact: The annual addition of 9 lakh new trucks to Indian roads contributes to air pollution, consuming a substantial portion of oil imports and contributing to over 90% of road transport CO2 emissions.
    • Obstacles to Electric Adoption: Upfront costs and charging infrastructure constraints pose challenges to the adoption of electric trucks, despite the success in electrifying rail freight and buses.

    Key Phrases:

    • Urgent Deployment: Urgent deployment of solutions is paramount in addressing the air quality crisis.
    • Targeted Mitigation: Diesel trucks and dust mitigation are identified as significant PM sources requiring immediate attention.
    • Corridor Demonstration: Green freight corridors are proposed as a demonstration effect to accelerate the transition to electric trucks.

    Critical Analysis:

    • Swift Action Call: The need for swift action is emphasized, with a call to accelerate the pace of transition to electric trucks.
    • Financial Implications: Public funding alone is insufficient, and the importance of attracting private and institutional capital is highlighted.
    • Decarbonization Priority: Despite the success in electrifying three-wheelers, truck electrification is recognized as a pivotal step in transport sector decarbonization.

    Key Examples and References:

    • E-truck Demand: The demand for 7,750 e-trucks in India by 2030 is cited as a potential measure to save over 800 billion liters of diesel till 2050.
    • Cost Disparity: The upfront cost disparity between mid-range electric trucks and diesel trucks is identified as a major hurdle.

    Key Data:

    • Electric Penetration Rate: India’s electric vehicle penetration rate has crossed 6%, but electric trucks remain a challenge.
    • Fleet Projection: The Indian truck fleet is projected to reach 1.7 crore in 2050, emphasizing the urgency of transitioning to electric trucks.

    Key Facts:

    • Corridor Proposal: Electrifying expressways and national highways as green freight corridors is proposed for demonstration and impact.
    • Financial Innovation: Innovative financial instruments and a conducive regulatory environment are deemed essential for the breakthrough in truck electrification.

    Way Forward:

    • Concerted Efforts: Urges the need for concerted efforts, including feasibility studies, demand aggregation, and a conducive regulatory environment, to create green freight corridors.
    • Recognition of Urgency: Stresses the importance of recognizing the urgency in addressing air quality issues and transitioning to electric trucks for a healthier urban environment.

  • How Satellite Data monitors Farm Fires in Northern India?

    Central Idea

    • Farm fires, particularly paddy crop residue fires, contribute to air pollution in northern India. To monitor and address this issue, satellite data is utilized.

    CREAMS Laboratory: Monitoring farm fires

    • Agency: The Indian Agricultural Research Institute’s (IARI) Consortium for Research on Agro-ecosystem Monitoring and Modeling from Space (CREAMS) Laboratory is responsible for collecting and disseminating daily bulletins on paddy residue fires.
    • Coverage: Data covers Punjab, Haryana, Uttar Pradesh, Rajasthan, Madhya Pradesh, and Delhi.
    • Information Provided: The bulletin includes district-wise fire incident numbers, comparative data from previous years, location, satellite details, time, and fire intensity.

    Satellite Data Collection

    • Satellites: Three NASA satellites (VIIRS on Suomi NPP, MODIS on Terra and Aqua) capture data by recording land surface temperatures.
    • Coverage: These satellites pass over the Indian subcontinent twice daily, with varying times.
    • Resolution: VIIRS offers higher resolution, while MODIS has coarser resolution.
    • Data Use: Satellite data is used to differentiate farm fires from other types, such as forest fires or industrial fires.

    Monitoring Protocols

    • Standardization: In 2021, a standard protocol for monitoring farm fires using satellite data was established.
    • Data Comparison: Comparative data is available from 2020 onwards.
    • Punjab’s Data: The Punjab Remote Sensing Centre provides similar data specific to Punjab.

    Identifying Paddy Fires

    • Reflectance Signature: Paddy crop residue fires are distinguished based on the unique reflectance signature of paddy fields.
    • Land Surface Temperature: Active fires are identified based on land surface temperature deviations from surrounding areas.
    • Fire Intensity: Intensity, expressed as energy emitted per unit area per unit time, indicates the amount of residue burned.

    Bulletin Dissemination

    • Recipient Agencies: Bulletins are sent to central and state-level agencies, including the Commission for Air Quality Management, the Ministry of Agriculture, and state agriculture departments.
    • Action Measures: Authorities use the data to identify hotspots and plan measures, such as machinery availability, to address farm fires.
    • Targets: Some states, like Punjab and Haryana, set targets for reducing farm fire incidents based on satellite data.

  • Places in news: Nugu Wildlife Sanctuary

    Nugu Wildlife Sanctuary

    Central Idea

    • The National Tiger Conservation Authority (NTCA) has made a crucial recommendation to designate the Nugu Wildlife Sanctuary, adjacent to the Bandipur Tiger Reserve, as a core critical tiger habitat.

    Nugu Wildlife Sanctuary

    • Location: It is situated in H.D. Kote taluk of Mysuru district, Karnataka.
    • Geographic Area: Nugu Wildlife Sanctuary encompasses a 30.32 sq km expanse and was officially declared a Wildlife Sanctuary by the State.
    • Unique Geography: The sanctuary includes the backwaters of Nugu dam on its western side and shares borders with Alaganchi State Forest, a part of Bandipur TR, on the southwest side.
    • Flora and Fauna: Despite recovering from past degradation, the flora of Nugu shares similarities with Bandipur. The sanctuary supports a diverse range of flora and fauna, including elephant, tiger, leopard, wild dog, striped hyena, sloth bear, gaur, sambhar, chital, and four-horned antelope.
    • Riverine Wildlife: Nugu Wildlife Sanctuary is also home to two important riverine wildlife species: the smooth-coated otter and the marsh crocodile, emphasizing its rich biodiversity.

    Conservation Efforts

    • Buffer Area: Nugu Wildlife Sanctuary is an integral part of the Nilgiri Biosphere Reserve and serves as a buffer area for Bandipur Tiger Reserve.
    • Ecological Significance: This sanctuary offers an inviolate and ideal habitat for tigers and elephants, making it a prime candidate for Core/Critical Tiger Habitat status within Bandipur TR.

  • Recognising the impact of climate change on health

    Framework on climate change and its impact on health (adapted from... | Download Scientific Diagram

    Central idea 

    As India gets ready for the 28th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP28), it is important to examine how climate change affects the country’s health. India’s inadequate health systems make our population particularly vulnerable to the impact of climate risks on health. Climate change affects health directly, causing more sickness and death. In more indirect ways, it affects nutrition, reduces working hours, and increases climate-induced stress.

    Key Highlights:

    • Vulnerability of Health Systems: Inadequate health infrastructure in India heightens susceptibility to climate change impacts on health.
    • Concerns Over Temperature Rise: Failure to cap global temperature rise raises fears of uninhabitable regions with a 2°C increase.

    Challenges:

    • Double Morbidity Burden: Convergence of communicable and non-communicable diseases worsens health challenges.
    • Neglected Non-communicable Diseases: Climate change impact on mental health and non-communicable diseases often overlooked in India.

    Key Phrases and Analysis:

    • Urban Heat Island Effect: Unplanned urbanization intensifies the urban heat island effect, straining the urban health system.
    • Poorly Managed Health Risks: Inadequate recognition and management of health risks associated with climate change-induced factors.

    Key Data and Facts:

    • Temperature-Related Health Risks: 1% increase above 29°C correlates with an 8% rise in hospitalization rates, emphasizing direct temperature impact.
    • Urbanization Challenges: Unplanned urbanization exacerbates climate-related health risks, necessitating interventions in urban planning and public health.

    Way Forward:

    • Holistic Mitigation Strategies: Mitigation involves understanding climate change pathways, modifying health information systems, and upstream interventions.
    • Multi-level Action: Coordinated action at global, regional, and local levels, involving researchers, policymakers, and governments for meaningful change.