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Subject: Environment

  • Mount Fuji

    Mount Fuji

    Why in the News?

    Japan’s iconic Mount Fuji has set a new record for the longest delay in snowfall since records began in 1894.

    Why delay in snowfall at Mount Fuji? 

    • Higher Temperatures: Japan’s hottest summer on record and above-average October temperatures have delayed the cooling needed for snow.
    • Heatwave: Japan experienced numerous “extremely hot” days with temperatures exceeding 35°C, even into September.
    • Jet Stream Shift: A northerly shift in the sub-tropical jet stream brought warmer air over Japan, further hindering snow formation.

    About Mount Fuji:

    Details
    Location Honshu Island, Japan, about 100 kilometers (62 miles) southwest of Tokyo.
    Height 3,776 meters (12,389 feet), making it the tallest mountain in Japan.
    Type of Volcano Stratovolcano, characterized by a conical shape formed from alternating layers of lava flow, ash, and tephra.
    Eruptions Last major eruption occurred in 1707 (Hoei eruption), causing ash to fall on Edo (now Tokyo).
    Geological Formation Formed through volcanic eruptions over thousands of years; current shape solidified around 300,000 years ago.
    Climate Varied climate with decreasing temperatures at higher altitudes; snow caps the summit from November to May.
    Surrounding Area Part of Fuji-Hakone-Izu National Park; surrounded by five lakes: Lake Kawaguchi, Lake Yamanaka, Lake Sai, Lake Shoji, and Lake Motosu.
    Cultural Significance • National symbol of Japan
    • Sacred in Shintoism, associated with the deity Konohanasakuya-hime
    • Known as one of Japan’s Three Holy Mountains
    Art and Literature A popular subject in traditional Japanese art (e.g., Hokusai’s Thirty-Six Views of Mount Fuji), referenced in poetry and literature.
    UNESCO World Heritage Site Designated as a UNESCO World Heritage Site in 2013 for its cultural significance and beauty.
    Cultural Festivals Hosts various festivals, such as the Fuji Shiba-sakura Festival, celebrating local flora.

     

    PYQ:

    [2021] Mention the global occurrence of volcanic eruptions in 2021 and their impact on regional environment.

  • What is DANA?

    Why in the News?

    The extreme conditions in eastern Spain which saw Valencia get a year’s worth of rain in just 8 hours can be blamed on an event locally known as Depresion Aislada en Niveles Altos (DANA).

    What is DANA?

    • Depresion Aislada en Niveles Altos (DANA), is commonly referred to as the “cold drop” in English.
    • It is a meteorological phenomenon in the western Mediterranean region that brings intense rainfall and flooding.
    • The term “DANA” was coined by Spanish meteorologists to specifically describe this weather phenomenon.

    Features and Location:

    • DANA occurs when cold air from the Polar Regions separates from the polar jet stream and descends over the warmer Mediterranean Sea.
    • The contrast between cold air aloft and warm, moist air near the surface causes atmospheric instability, leading to the rapid formation of cumulonimbus clouds and intense thunderstorms.
    • It primarily affects Spain and Portugal but can also impact Italy, France, and other areas around the Mediterranean Sea.
    • This occurs in autumn and spring, as temperature variations are more pronounced during these seasons.

    PYQ:

    [2014] The seasonal reversal of winds is the typical characteristic of:

    (a) Equatorial climate

    (b) Mediterranean climate

    (c) Monsoon climate

    (d) All of the above climates

  • TN declares Heatwaves a State-specific Disaster

    Why in the News?

    • The Tamil Nadu government has officially declared heatwaves a State-specific disaster.
      • It announced an ex-gratia payment of ₹4 lakh for families of individuals who die from heat-related causes, including those involved in relief operations.

    Key Details of the Declaration

    • Purpose: This declaration allows the government to provide immediate relief to those affected by extreme heat, especially during the severe temperatures of April and May 2024.
    • Funding: Relief efforts will be supported by the State Disaster Response Fund.
    • Other State-specific disasters in TN: Sea erosion, lightning, thunder, whirlwinds, and gale winds as State-specific disasters to ensure relief assistance for those impacted by these events.

    Note: 

    • Kerala in March this year, declared man-animal conflict as a state-specific disaster, becoming the first state in the country to do so.
    • Once an issue is declared a state-specific disaster, the onus to deal with it shifts to the state disaster management authority, which, powered by the Disaster Management Act, can take quicker and more decisive action.
    • Also, district collectors can directly intervene in their capacity as the chairman of the district disaster body.

     

    heatwave

    About Heatwaves:

    Details
    Definition A heatwave is a prolonged period of excessively hot weather, relative to the usual climate of a region.
    Occurrence Typically occurs in India between March and June.
    Declaration by IMD
    • Plains: The maximum temperature is at least 45°C
    • Hills: The maximum temperature is at least 30°C
    • Coastal regions: The maximum temperature is at least 37°C and the departure from normal is at least 4.5°C
    Formation • High-Pressure Systems: Develop when high pressure settles over a region for days or weeks.
    • Air Sinking: Forces air to sink, warming and drying it.
    • Increased Radiation: Fewer clouds lead to higher surface temperatures.
    • Surface Winds: Warm air from lower latitudes or continental winds intensify heat.
    Criteria for Declaring a Heatwave At least two stations in a meteorological subdivision must meet one of the following criteria for two consecutive days (declared on the second day):
    Based on Departure from Normal:
    – Heat Wave: Temperature departure of 4.5°C to 6.4°C above normal.
    – Severe Heat Wave: Temperature departure of >6.4°C above normal.
    Based on Actual Maximum Temperature (plains only):
    – Heat Wave: Maximum temperature reaches 45°C or higher.
    – Severe Heat Wave: Maximum temperature reaches 47°C or higher.
    Duration Typically lasts a minimum of four days but can extend to seven or ten days.
    Longest Recorded Spell: May 2015, lasting from 18 to 31 May.
    Impact of Heatwaves • Heat Strokes: Increased risk, especially for the elderly and those with chronic illnesses.
    • Increased Healthcare Costs: Higher hospital visits and death rates from related illnesses.
    • Reduced Productivity: Extreme heat affects the output of over 1 billion workers.
    • Risk of Wildfires: Heat domes can lead to wildfires.
    • Effect on Vegetation: Prolonged heat damages crops and leads to droughts.
    • Increased Energy Demands: Higher electricity usage for cooling, driving up rates.

     

    PYQ:

    [2013] Bring out the causes for the formation of heat islands in the urban habitat of the world.

    [2013] The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is / are the reason / reasons?

    1. Thermal difference between land and water

    2. Variation in altitude between continents and oceans

    3. Presence of strong winds in the interior

    4. Heavy rains in the interior as compared to coasts

    Select the correct answer using the codes given below.

    (a) 1 only

    (b) 1 and 2 only

    (c) 2 and 3 only

    (d) 1, 2, 3 and 4

  • Similipal Tiger Reserve

    Why in the News?

    The Odisha government has translocated a female tiger from Maharashtra’s Tadoba-Andhari Tiger Reserve to Similipal Tiger Reserve, the State’s largest, to enhance the genetic diversity of its tiger population.

    Similipal Tiger Reserve

    Why discuss this?

    • The All Odisha Tiger Estimation (AOTE-2023-24) says a total of 30 tigers were found in Odisha. Similipal has 27 of them.
    • A total of 13 adult tigers (seven females and six males) were found to be pseudo-melanistic in Similipal, and no other wild habitat in the world has pseudo-melanistic tigers.
      • Research indicates that a single mutation in the Transmembrane Aminopeptidase Q (Taqpep) gene causes Similipal’s black tigers to develop distinctive striped patterns.

    About Simlipal Tiger Reserve (STR):

    Details
    Location Located in the Mayurbhanj District, Northernmost part of Odisha, surrounded by high plateaus and hills.
    Highest Peak Twin peaks of Khairiburu and Meghashini, at 1515 meters above mean sea level.
    Designation Declared a Tiger Reserve in 1956; included in the Project Tiger national conservation program in 1973.
    UNESCO Recognition Included as part of the World Network of Biosphere Reserves by UNESCO in 2009.
    Terrain Mostly undulating and hilly, interspersed with open grasslands and wooded areas.
    Vegetation A mix of different forest types, predominantly Northern tropical moist deciduous and semi-evergreen patches.
    Tribal Communities Inhabited by various tribes including Kolha, Santhala, Bhumija, Bhatudi, Gondas, Khadia, Mankadia, and Sahara.
    Flora Home to 1078 species of plants, including 94 species of orchids, with Sal being the dominant tree species.
    Fauna Diverse wildlife including Leopard, Gaur, Elephant, Langur, Barking and Spotted Deer, Sloth Bear, Mongoose, Flying Squirrel, Porcupine, Turtle, Monitor Lizard, Python, Sambar, Pangolin, etc.

     

    PYQ:

    [2020] Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”?

    (a) Corbett

    (b) Ranthambore

    (c) Nagarjunsagar-Srisailam

    (d) Sunderbans

  • 2024 Global Nature Conservation Index

    Why in the News?

    India has been ranked 176th in the Global Nature Conservation Index (NCI) 2024 with a score of 45.5 out of 100, placing it among the five worst performers alongside Kiribati (180), Turkey (179), Iraq (178), and Micronesia (177).

    Reasons for India’s Low Ranking:

    • High Rate of Land Conversion: 53% of India’s land is converted for urban, industrial, and agricultural purposes, contributing to deforestation and habitat fragmentation that severely impact biodiversity.
    • Soil Pollution: India’s sustainable nitrogen index is 0.77, indicating high levels of soil pollution primarily due to extensive pesticide use, threatening soil health and agricultural sustainability.
    • Minimal Marine Conservation: Only 0.2% of India’s national waterways are protected, with no protected areas in its Exclusive Economic Zone (EEZ), highlighting limited efforts in marine biodiversity conservation.
    • Illegal Wildlife Trade: India ranks as the fourth-largest illegal wildlife trader globally, with an estimated annual trade value of £15 billion, putting added pressure on vulnerable wildlife species.

    About the Nature Conservation Index (NCI):

    Details
    Developed By Goldman Sonnenfeldt School of Sustainability and Climate Change at Ben-Gurion University of the Negev.
    Purpose To assess each country’s progress in balancing conservation and development through data-driven analysis.
    Aim To help governments, researchers, and organizations identify concerns and enhance conservation policies for long-term biodiversity protection.
    Launch Date Launched on October 24, 2024.
    Scope Ranks 180 countries based on their conservation efforts.
    Pillars of the Index • Managing Protected Areas
    • Addressing Threats Against Biodiversity
    • Nature and Conservation Governance
    • Future Trends in Natural Resource Management
    Significance Provides insights into conservation policies and practices, aiding in the global effort to protect biodiversity and promote sustainable development.

    Key highlights of the reports:

    • Finland, Norway, Switzerland, Costa Rica, and New Zealand ranked highest, showing strong conservation practices and governance.
    • Nations with advanced climate adaptation policies (e.g., Sweden and Denmark) are better positioned to mitigate biodiversity risks from climate change.
    • Despite Protected Areas, 46.9% of terrestrial and 67.5% of marine species are in decline worldwide.
    • High-density nations such as Bangladesh and the Netherlands face intense biodiversity pressures, driving them to implement urban greening and sustainable practices.

    PYQ:

    [2018] “Momentum for Change: Climate Neutral Now” is an initiative launched by:

    (a) The Intergovernmental Panel on Climate Change

    (b) The UNEP Secretariat

    (c) The UNFCCC Secretariat

    (d) The World Meteorological Organisation

  • What is the Hasdeo Arand Forest?

    Why in the News?

    In Chhattisgarh’s Hasdeo Arand forest, tribals ambushed the police after tree-felling resumed for coal mining in the area.

    What is the Hasdeo Arand Forest?

    • Hasdeo Arand Forest is known as the “lungs of Chhattisgarh” due to its rich biodiversity.
    • It is the largest unfragmented forest in Central India with pristine Sal and teak forests.
    • It spans 1,879.6 sq km across the Sarguja, Korba, and Surajpur districts in Chhattisgarh.
      • The Hasdeo River runs through the forest.
    • It is home to nine protected species under Schedule I of the Wildlife Protection Act, 1972, including:
      • Elephants, leopards, sloth bears, Indian grey wolves, and Indian pangolins.
    • It supports 92 bird species, 25 mammals, 16 types of snakes, and serves as a corridor for elephants and tigers.
    • It hosts 640 plant species, including 128 medicinal plants and 40 timber-yielding species.

    Why are the People Protesting for its ‘Protection’?

    • Environmental Impact: Mining threatens to destroy the forest cover, impacting biodiversity and wildlife corridors.
    • Livelihood Concerns: Local communities depend on the forest for farming and forest produce.
    • Displacement Issues: Villagers report inadequate compensation and resettlement offers, which do not match the size of their current homes.
    • Alleged Forgery: Villagers allege that fake gram sabha resolutions were used to secure clearances for mining projects.
    • Demand for Cancellations: Activists want the Parsa coal block cancelled and assurances that the 1,995 sq km Lemru Reserve Forest will be protected from future mining.

    PYQ:

    [2012] A particular State in India has the following characteristics:

    1. It is located on the same latitude which passes through northern Rajasthan.

    2. It has over 70% of its area under forest cover.

    3. Over 12% of forest cover constitutes Protected Area Network in this State.

    Which one among the following States has all the above characteristics?

    (a) Arunachal Pradesh

    (b) Assam

    (c) Himachal Pradesh

    (d) Uttarakhand

  • Why ‘protected’ areas are seeing faster biodiversity decline?

    Why in the News?

    According to a recent study conducted by the Natural History Museum (NHM) in London, biodiversity is decreasing more rapidly within key protected areas than outside of them.

    What did the Biodiversity Intactness Index (BII) say?

    • The Biodiversity Intactness Index (BII) is a quantitative measure designed to assess the state of terrestrial biodiversity with its natural baseline, before significant human impact.
    • It decreased by 1.88% points globally between 2000 and 2020, indicating a loss in the average natural biodiversity of regions worldwide.
    • Within the 22% of ‘Critical Biodiversity Areas’ that are protected, biodiversity has declined by 2.1 percentage points, while non-protected areas saw a decline of 1.9 percentage points during the same period.

    Why is the decline happening?

    • Inadequate Ecosystem Protection: Many protected areas focus only on specific species rather than the entire ecosystem, failing to prioritize overall biodiversity intactness.
    • Pre-existing Degradation: Some protected areas may have been already degraded before being designated as protected, limiting their effectiveness in conserving biodiversity.
    • External Threats: Activities such as oil, gas, and mining concessions encroach on protected areas, leading to habitat destruction and further biodiversity loss.
    • Climate Crisis Impact: Increased frequency of extreme weather events, such as droughts and wildfires, has severely affected protected areas, undermining their conservation efforts.

    Steps taken by the Indian Government to conserve biodiversity:

    • Legislative Framework

        • Biological Diversity Act, 2002: Established to conserve biological resources and regulate access to these resources, ensuring equitable sharing of benefits derived from their use.
        • Wild Life (Protection) Act, 1972: Facilitates the creation of Protected Areas for wildlife conservation and imposes penalties for illegal hunting.

    • Conservation Policies:

        • Project Tiger: Launched in 1973, this initiative aims to protect tiger populations across designated reserves.
        • Project Elephant: Initiated in 1992, it focuses on the management and protection of wild elephant populations and their habitats.
        • National Biodiversity Mission: A mission mode initiative aimed at documenting and conserving India’s biodiversity.

    • Protected Areas

      • Establishment of a Protected Area Network: This includes National Parks, Wildlife Sanctuaries, Conservation Reserves, and Community Reserves to provide better protection for wildlife and their habitats.
      • Designation of Biosphere Reserves: These reserves are aimed at conserving representative ecosystems.

    What should be done? (Way forward)

    • Ecosystem-Centric Management: Shift focus from individual species to the overall health of ecosystems to ensuring comprehensive protection of habitats and their interdependent species.
    • Strengthened Protection and Regulation: Implement stricter regulations to limit industrial activities (e.g., oil and gas exploration) within and around protected areas, alongside enforcing more robust land-use policies.
    • Community Engagement and Education: Involve local communities in conservation efforts and enhance public awareness about biodiversity’s importance, fostering a collective responsibility for sustainable practices.

  • US court to decide whether elephants get human rights

    Why in the News?

    Colorado’s highest court recently reviewed whether older African female elephants can legally contest their captivity, as the NonHuman Rights Project claims they are unlawfully confined.

    What is nonhuman?

    • Nonhuman animals are living beings other than humans, including mammals, birds, reptiles, fish, and insects, recognized for their capacity to feel, behave, and interact.

    What is Legal personhood? 

    • Legal personhood is the status granted to an entity, allowing it to hold legal rights and obligations, traditionally applied to humans and some organizations.
    • Example: All human individuals are recognized as legal persons. This allows them to enter into contracts, sue, and be sued in court.

    What Constitutes Legal Personhood for Nonhuman Animals?

    • Legal Personhood Definition: Legal personhood refers to the capacity of an entity to have legal rights and duties. In law, a “person” is not strictly limited to human beings; corporations, for example, are considered legal persons.
    • Application to Nonhuman Animals: Extending legal personhood to nonhuman animals involves granting them certain legal rights, such as the right to not be unlawfully confined or exploited. This would require redefining animals’ status from property to beings with inherent rights.
    • Arguments in Favor: Proponents argue that certain highly intelligent and socially complex animals, such as elephants, dolphins, and great apes, should be granted legal rights because they can experience suffering and possess a degree of autonomy akin to that of humans.
    • Arguments Against: Opponents of legal personhood for animals argue that the legal system is designed for human society and extending personhood to animals could lead to complex legal issues.
      • They contend that animal welfare can be ensured through legislative protections rather than redefining personhood.

    How can societies balance animal welfare with cultural practices that might clash with today’s views on animal rights?

    • Engagement and Dialogue: Encourage conversations between cultural leaders, communities, and animal rights advocates to understand different perspectives and find common ground on how to improve animal welfare while respecting traditions.
    • Education and Awareness: Promote education about animal welfare and the capacity of animals to feel pain and suffering, helping communities to reconsider practices and adopt alternatives that align with both cultural values and humane treatment.
    • Legal Frameworks: Implement laws that protect animal welfare while allowing for cultural practices to continue in a regulated manner, ensuring that such practices do not involve cruelty or inhumane treatment of animals.

    What are the Rights of Animals in the Indian Context?

    • Traditional and Cultural Practices: In India, animals play a significant role in various cultural and religious practices. For instance, cows are considered sacred in Hinduism, while elephants are used in festivals and ceremonies.
    • Legal Framework for Animal Rights: India has several laws aimed at protecting animal rights, such as the Prevention of Cruelty to Animals Act, 1960, and the Wildlife Protection Act, 1972. These laws establish standards for animal welfare and criminalize cruelty.
      • However, they stop short of granting legal personhood to animals.
    • Judicial Intervention: The Indian judiciary has taken progressive stances on animal rights in some cases.
      • For example, the Uttarakhand High Court in 2018 declared all animals in the state to be legal entities, with citizens acting as guardians. This ruling emphasized the need to protect animals’ dignity and well-being, though it did not grant full legal personhood.

    Conclusion: India can look toward a framework that balances animal welfare with cultural practices by adopting context-specific policies. This could include creating more robust welfare standards, engaging with communities to find humane alternatives, and fostering a cultural shift toward greater empathy for animals.

  • Cyclone Dana

    Why in the News?

    West Bengal and Odisha experienced heavy rainfall as Tropical Cyclone Dana is anticipated to make landfall later tonight.

    What are Cyclones?

    • Cyclones are wind systems rotating inwardly towards an area of low atmospheric pressure. They are categorised into Tropical (Temperature-induced) and Temperate (extra-tropical) cyclones (airmass-induced).
    • Formation Conditions: Tropical cyclones originate in warm regions, requiring conditions such as
    1. Warm sea surface (> 27°C),
    2. Coriolis Force,
    3. Pre-existing low-pressure systems,
    4. Small vertical wind speed differences, and
    5. Upper air divergence.

    Characteristics of Tropical Cyclones:

    • They form over warm water bodies due to energy derived from the condensation of warm water within cumulonimbus clouds.
    • Wind rotation is influenced by the Coriolis force, resulting in anti-clockwise rotation in the northern hemisphere and clockwise in the southern hemisphere.
    • By 30° latitude, the diminished warmth halts cyclone activity.

    What is the “Landfall” of a Cyclone?

    • Landfall occurs when a tropical cyclone moves from the sea onto the land.
    • As per the IMD, a cyclone makes landfall when the centre of the storm, or its eye, crosses the coast.
    • Landfall should not be confused with a “direct hit”, where the eyewall (area of high winds) hits land but the eye of the cyclone remains offshore.
    • According to the National Oceanic and Atmospheric Administration (NOAA), a cyclone’s strongest winds may still impact land even if the centre of the storm does not reach the coast.

    How long does a Cyclone Landfall last?

    • The duration of landfall typically lasts a few hours, depending on the wind speed and size of the storm.
    • For cyclone Dana, the landfall process is expected to last five to six hours with wind speeds around 125 km/h, impacting a wide region.
    • Cyclones usually weaken after landfall as they lose their moisture supply and experience increased surface friction.
    • While landfall is often the most destructive phase of a cyclone, it also signals the beginning of the cyclone’s dissipation.

    PYQ:

    [2015] In the South Atlantic and South Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the main reason behind this?

    (a) Sea Surface temperature are low

    (b) Inter Tropical Convergence Zone seldom occurs

    (c) Coriolis force is too weak

    (d) Absence of land in those regions

  • [pib] Environmental Ship Index (ESI)

    Why in the News?

    • Mormugao Port Authority has gained global recognition as an incentive provider on the Environmental Ship Index (ESI) platform.
      • It is the first port in India to implement Green Ship Incentives under the ESI, promoting eco-friendly practices in shipping.
      • The port launched the “Harit Shrey” scheme in October 2023, offering port fee discounts based on ESI ratings of commercial vessels.

    About the Environmental Ship Index (ESI):

    Details
    What is it? A scoring system that measures the environmental performance of ships, specifically their air pollution emissions.
    Establishment Launched in 2011 by the World Ports Sustainability Program (WPSP) under the International Association of Ports and Harbours (IAPH).
    Scope ESI evaluates emissions of:
    • Sulfur oxides (SOx)
    • Nitrogen oxides (NOx)
    • Carbon dioxide (CO₂)
    • Particulate matter from seagoing vessels.
    Purpose To encourage ships to adopt technologies and practices that minimize emissions, contributing to air quality improvement and climate change mitigation.

    How effective is ESI to reduce emissions, and what metrics are used to evaluate this effectiveness?

    • The ESI provides a framework for incentivizing ships based on their environmental performance, specifically targeting reductions in air emissions such as CO2, SOx, and NOx.  
    • The effectiveness of the ESI is evaluated using specific metrics, including a ship’s ESI score, which is derived from factors such as engine efficiency, fuel quality, and the implementation of emission reduction technologies.
    • The ESI enables ports to analyze the overall impact of green shipping initiatives through aggregated data on participating vessels.

    What are the future developments planned for the ESI?

    • Future plans include expanding metrics to cover additional pollutants and carbon intensity for a more comprehensive environmental assessment.
    • Enhancements in digital reporting for easier tracking of emissions data and performance analytics.
    • Planned updates will aim to support the International Maritime Organization’s (IMO) 2050 decarbonization targets, including zero-emission technology.

    How will they align with global maritime regulations aimed at decarbonization?

    • ESI updates will align with IMO’s MARPOL Annex VI regulations on pollutant emissions and greenhouse gases (GHG).
    • ESI’s future adaptations will address carbon intensity targets and promote alternative fuels like ammonia and hydrogen, in line with IMO’s goal of net-zero GHG emissions by 2050.
    • The ESI is part of the broader World Ports Sustainability Program (WPSP), promoting sustainability in port operations and low-carbon maritime trade.
    • ESI aims to further incentivize the adoption of energy-efficient engines, battery systems, and hybrid propulsion to support long-term emission reduction.

    PYQ:

    [2015] With reference to ‘Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)’, consider the following statements:

    1. It was established very recently in response to incidents of piracy and accidents of oil spills.
    2. It is an alliance meant for maritime security only.

    Which of the statements given above is/are correct?

    (a) 1 only
    (b) 2 only
    (c) Both 1 and 2
    (d) Neither 1 nor 2