India, with a coastline of over 7,500 km and a vast Exclusive Economic Zone (EEZ), possesses rich marine biodiversity comprising coral reefs, mangroves, seagrasses, marine mammals, turtles, and deep-sea ecosystems. Recognising the ecological and economic importance of oceans, India has adopted a mission-mode approach toward marine conservation through legal safeguards, institutional mechanisms, and scientific initiatives such as the Deep Ocean Mission (DOM).

The framework reflects India’s commitment toward sustainable use of marine resources, biodiversity protection, and strengthening the blue economy.

Legal and Institutional Framework

Wildlife Protection Measures

The Wildlife (Protection) Act, 1972 provides legal protection to several marine species under Schedules I and II.

The 2022 amendment strengthened enforcement by granting the Indian Coast Guard powers of search, seizure, and arrest in marine wildlife crime cases.

Marine Protected Areas (MPAs)

India has established 132 Coastal and Marine Protected Areas, including:

• 6 Marine National Parks
• Marine sanctuaries
• Protected mangrove and coral ecosystems These protected areas help conserve:
• Coral reefs
• Mangroves
• Seagrass beds
• Marine fauna and breeding habitats

Scientific Institutions

The Centre for Marine Living Resources and Ecology (CMLRE) plays a major role in marine biodiversity assessment.

It uses advanced tools such as environmental DNA (eDNA) metabarcoding to monitor deep-sea biodiversity and maintain a national marine fauna repository.

Deep Ocean Mission (DOM)

Launched in 2021 under the Ministry of Earth Sciences, the Deep Ocean Mission aims to explore ocean resources and develop technologies for sustainable deep-sea operations.

Samudrayaan Mission

A flagship component of DOM is the Samudrayaan project, which seeks to undertake India’s first human deep-sea mission to a depth of 6,000 metres.

The mission will use the Matsya 6000 submersible capable of carrying a three-member crew.

Technological Significance

Matsya-6000 uses a titanium-alloy spherical hull developed with support from Indian Space Research Organisation (ISRO), enabling survival under extreme underwater pressure.

Resource Exploration

The mission focuses on exploring polymetallic nodules in the Central Indian Ocean Basin containing:

• Cobalt
• Nickel
• Copper
• Manganese

These minerals are strategically important for renewable energy technologies, batteries, and electronics manufacturing.

Strategic Importance

Successful implementation would place India among a select group of countries — including the United States, Russia, China, France, and Japan — possessing human deep-sea exploration capabilities.

Other Major Conservation Initiatives

Project Dolphin

Launched in 2020, the project focuses on habitat conservation and population monitoring of both marine and river dolphins.

National Marine Turtle Action Plan

Introduced in 2021, the plan seeks to conserve Olive Ridley turtles by reducing fishing-related threats and coastal poaching.

Integrated Coastal Zone Management (ICZM)

ICZM promotes sustainable coastal development and resource management in states such as:

• Gujarat
• Odisha
• West Bengal

MISHTI Scheme

Launched in 2023, MISHTI promotes mangrove restoration across 13 states and Union Territories, covering over 22,000 hectares.

BBNJ Agreement

India joined the Biodiversity Beyond National Jurisdiction Agreement (BBNJ) in 2024 to support conservation of marine biodiversity in areas beyond national jurisdiction.

Challenges

Despite significant progress, several challenges persist:

• Marine pollution and plastic waste
• Coastal erosion and habitat degradation
• Overfishing and illegal fishing
• Climate change impacts on coral reefs and marine ecosystems
• Technological and financial limitations in deep-sea exploration

Way Forward

Strengthen Marine Governance

Improve coordination among environmental, fisheries, coastal, and maritime agencies.

Expand Scientific Research

Enhance oceanographic research, biodiversity mapping, and climate resilience studies.

Community Participation

Promote participation of coastal communities in conservation and sustainable resource management.

Sustainable Blue Economy

Balance resource extraction with ecological sustainability and biodiversity protection.

Conclusion

India’s marine biodiversity conservation framework reflects a comprehensive approach combining legal protection, scientific innovation, and sustainable ocean governance.

Initiatives such as the Deep Ocean Mission, marine protected areas, and mangrove restoration strengthen India’s role in global marine conservation while advancing the blue economy. Long-term success will depend on balancing economic interests with ecological sustainability and international cooperation.

Introduction

Scientists have recently discovered two previously unknown species of fireflies in the East Khasi Hills of Meghalaya. The newly identified species — Diaphanes meghalayanus and Diaphanes mawlynnong — mark the first formal scientific documentation of such fireflies from the state.

The discovery highlights the rich biodiversity of Northeast India and underlines the ecological importance of Meghalaya’s forest ecosystems.

About the Newly Discovered Species

1. Diaphanes meghalayanus
   • Named after the state of Meghalaya to reflect its broader regional distribution.
   • Found in:
     • Semi-evergreen forests
     • Dense betel nut plantations
     • Bamboo-dominated patches

Habitat Conditions

The species thrives in:

• Cool temperatures: 18–20°C
• High humidity: 77–80%
• Dark, minimally disturbed environments

Behaviour

• Males fly at heights of around 10–15 metres
• Emit a soft glowing light during flight
• Mostly observed during February

2. Diaphanes mawlynnong
   • Named after Mawlynnong village, recognising the local Khasi community.
   • Appears to be habitat-specific.

Habitat

Found in:

• Dense bamboo forests
• Rocky stream ecosystems
• Moist forest interiors

Behaviour

• Males fly around 15 metres above ground level
• Wingless female discovered beneath a boulder

This behaviour is considered unusual and provides valuable insights into the species’ reproductive ecology and life cycle.

Bioluminescence

• Females emit slower and longer pulsating glows than males.

What are Fireflies?

Fireflies, also known as lightning bugs, are bioluminescent beetles belonging to the family Lampyridae.

Key Characteristics

• Produce light through bioluminescence
• Found mostly in humid tropical and temperate regions
• Use flashing patterns for:
  • Mating communication
  • Species identification
  • Predator deterrence

Bioluminescence in Fireflies

Fireflies produce light through a chemical reaction involving:

• Luciferin (light-emitting compound)
• Luciferase enzyme
• Oxygen
• ATP (energy molecule) The reaction generates:
• “Cold light” with minimal heat loss

This makes firefly bioluminescence highly energy efficient.

Ecological Importance of Fireflies

Indicators of Ecosystem Health

Fireflies are sensitive to:

• Light pollution
• Habitat destruction
• Pesticides
• Climate change

Their presence often indicates:

• Healthy forest ecosystems
• Stable humidity levels
• Low human disturbance

Role in Food Chains

Fireflies contribute to ecosystem functioning by:

• Acting as predators of small insects and snails
• Serving as prey for birds, amphibians, and reptiles

Significance of the Discovery

Biodiversity Documentation

The discovery enriches India’s documented insect biodiversity, especially in the ecologically sensitive Northeast region.

Importance of Meghalaya’s Ecosystems

The East Khasi Hills represent a biodiversity hotspot with:

• High rainfall
• Dense forests
• Unique microclimatic conditions

The finding demonstrates the ecological value of conserving such habitats.

Scientific Importance

The observation of wingless females and distinct glowing behaviour provides rare insights into:

• Reproductive strategies
• Species evolution
• Behavioural ecology

Threats to Fireflies

Despite their ecological importance, fireflies face several threats:

1. Habitat Loss

Deforestation and land-use change reduce suitable breeding and feeding habitats.

2. Light Pollution

Artificial lighting disrupts mating signals and communication.

3. Climate Change

Changes in temperature and humidity affect survival and reproduction.

4. Pesticide Use

Chemical pollution harms larvae and reduces insect prey availability.

Conservation Importance

The discovery reinforces the need for:

• Forest conservation
• Reduction in light pollution
• Protection of moist microhabitats
• Sustainable land-use practices

Community participation, especially among indigenous groups such as the Khasi community, will be critical for long-term conservation.

Conclusion

The discovery of Diaphanes meghalayanus and Diaphanes mawlynnong in Meghalaya highlights the immense but still underexplored biodiversity of India’s Northeast region. Beyond scientific significance, these fireflies serve as indicators of healthy ecosystems and remind us of the urgent need to conserve fragile forest habitats amid growing environmental pressures.

Protecting such species is essential not only for biodiversity conservation but also for preserving ecological balance and understanding the complex evolutionary processes of nature.

Context

The push for 100% ethanol blending (E100) has gained momentum after the Union Minister for Road Transport and Highways advocated its adoption as part of India’s broader strategy for energy self-reliance and reduced dependence on fossil fuel imports. While India has made significant progress in ethanol blending, moving towards E100 raises important

technological, economic, and environmental considerations.

Understanding Ethanol Blending (E100)

Ethanol blending involves mixing ethanol with petrol. E100 refers to the use of pure ethanol as fuel. However, ethanol has a lower energy density than petrol—approximately 45–55% less energy per litre—which directly impacts mileage and vehicle performance.

Currently, most vehicles in India are compatible with E20 (20% ethanol blend) or lower. Higher blends such as E85 or E100 require flex-fuel vehicles (FFVs) that can operate on varying ethanol-petrol mixtures.

Need for Flex-Fuel Vehicles (FFVs)

Transitioning to E100 requires a shift in automobile technology. FFVs are equipped with:

• Corrosion-resistant fuel systems
• Advanced sensors and engine control units
• Optimised combustion systems for ethanol

Countries like Brazil have successfully adopted FFVs at scale. In India, adoption is still nascent, though companies like Toyota are introducing compatible models, and others such as Maruti Suzuki and Hyundai are developing prototypes.

Infrastructure and Supply Chain Requirements

Achieving E100 is not merely a technological challenge but also an infrastructural one. It requires:

• Dedicated storage and distribution systems
• Modifications in fuel stations
• Efficient logistics for ethanol transport

These changes must align with India’s broader push for domestic manufacturing and energy transition.

Ethanol Production in India: Opportunities and Challenges

India primarily produces ethanol from sugarcane, making it the dominant feedstock. While this supports the agricultural economy, it raises concerns:

• Sugarcane is water-intensive
• Cultivation often occurs in water-stressed regions
• Potential impact on food security and crop prices

Shift Towards Second-Generation (2G) Ethanol

To address sustainability concerns, India is promoting 2G ethanol, produced from crop residues like rice straw.

Benefits include:

• Reducing stubble burning in North India
• Lower environmental impact
• Diversification of feedstock sources

Public sector entities like Indian Oil Corporation are actively investing in 2G ethanol plants.

Cost and Policy Support

Ethanol production is often costlier or comparable to petrol, requiring government intervention through:

• Administered pricing
• Subsidies and incentives
• Policy support for industry expansion

Without such measures, large-scale adoption may not be economically viable.

Environmental Trade-offs

Ethanol is often seen as a cleaner alternative, but its environmental impact is mixed:

Advantages:

• Lower emissions of carbon monoxide
• Reduced particulate matter

Concerns:

• High water consumption
• Land use changes
• Increased use of fertilisers and pesticides

Thus, sustainability depends on production practices rather than fuel use alone.

CAFE Norms and Ethanol Blending

India introduced Corporate Average Fuel Efficiency (CAFE) norms in 2017 to regulate vehicle emissions.

• CAFE I (2017) and CAFE II (2022) improved fuel efficiency
• CAFE III (2027) will impose ~30% stricter emission targets

While CAFE norms do not mandate ethanol use, they indirectly incentivise higher ethanol blends as automakers seek to meet emission targets.

Consumer Concerns and Efficiency

Ethanol-blended fuels present challenges for consumers:

• E20 fuel reduces mileage by 6–7%
• Higher blends may further reduce efficiency
• Potential increase in fuel costs

Adoption will depend on balancing affordability, efficiency, and environmental benefits.

Progress of Ethanol Blending in India

India’s Ethanol Blending Programme (launched in 2003) has seen rapid progress:

• ~2% blending in 2014
• Achieved E10 by 2022
• E20 rollout from 2023, targeted nationwide by 2025 This accelerated progress reflects strong policy support.

Infrastructure and Industry Challenges

Despite progress, key bottlenecks remain:

• Limited vehicle compatibility
• Inadequate fuel storage and distribution systems
• Supply constraints of ethanol

These challenges must be addressed before scaling up to E100.

Ethanol and India’s Energy Security Strategy

Ethanol blending is part of a broader strategy to reduce import dependence. However, India is also exploring:

1. Diversification of Energy Sources
   • Alternative oil suppliers
   • Expansion of renewable energy
2. Hydrogen Economy

Under the National Green Hydrogen Mission, India aims to:

• Produce hydrogen at $1/kg
• Compete with fossil fuels
• Become a global energy exporter

3. Circular Economy Approach
   • Producing hydrogen from municipal waste and sewage
   • Integrating sustainability with energy production

Challenges in Energy Transition

• Limited domestic production of oil and gas
• Technological gaps in hydrogen storage and transport
• Infrastructure constraints
• Geopolitical uncertainties

Way Forward

• Promote sustainable feedstocks like 2G ethanol
• Expand FFV adoption and infrastructure
• Balance environmental and economic considerations
• Integrate ethanol strategy with broader clean energy goals

Conclusion

Ethanol blending represents a significant step towards energy security and cleaner fuels in India. However, achieving 100% blending requires overcoming challenges related to technology, infrastructure, cost, and sustainability. A balanced and phased approach—

combined with innovations like green hydrogen—will be crucial for India’s long-term energy transition.

The Himachal Pradesh High Court recently quashed a notification that declared areas of at least three gram panchayats around Col. Sher Jung National Park as an Eco-Sensitive Zone (ESZ). The decision has raised important questions regarding environmental governance, conservation policies, and the balance between ecological protection and local livelihoods.

About Col. Sher Jung National Park

  Col. Sher Jung National Park, also known as Simbalbara National Park, is located in the Paonta Valley of Himachal Pradesh along the border with Haryana.

  It is named after Colonel Sher Jung, a noted freedom fighter and environmentalist.

  The park lies in the Shiwalik range, with elevations ranging from 350 to 700 meters above sea level.

  It spans across the lower, middle, and upper Shiwaliks, giving it diverse ecological

characteristics.

Geographical Significance

  The park is located at the confluence of three major biogeographic regions:

The Himalayas

The Gangetic Plains

  The semi-arid regions

  It shares its boundary with Kalesar National Park, forming an important ecological corridor.

  The Simbalbara River flows through the park, acting as a vital water source for flora and

fauna.

Vegetation and Flora

  The park is characterized by dense Sal forests interspersed with grassy glades.

  Dominant tree species include:

• Sal (Shorea robusta)
• Terminalia tomentosa

  Riverine vegetation includes:

• Jamun (Syzygium cumini)
• Cassia siamea
• Eucalyptus

  The vegetation supports rich biodiversity and provides habitat for numerous species.

Fauna

  The park hosts a variety of wildlife species such as:

• Nilgai
• Sambar deer
• Spotted deer
• Wild boar
• Goral
• Barking deer
• Rhesus macaque

  It is also an important bird habitat, with species including:

• Indian roller
• Dollar bird
• Kingfishers
• Hornbills

  Birds of prey such as the crested serpent eagle and Brahminy kite are also found here.

Conclusion

The recent High Court decision regarding the Eco-Sensitive Zone around Col. Sher Jung National Park highlights the complexities involved in conservation governance. While ESZs aim to protect fragile ecosystems, their implementation must consider the socio-economic realities of local communities. Ensuring a balanced approach that promotes both ecological sustainability and community welfare remains crucial.