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Subject: Environment

  • [pib] Centre launches Secured Logistics Document Exchange (SLDE) and GHG Calculator

    With an aim to further improve ease of doing business, Centre today launched the “Secured Logistics Document Exchange” along with a Calculator for Green House Gas Emissions.

    Secured Logistics Document Exchange (SLDE)

    • The SLDE platform is a solution to replace the present manual process of generation, exchange and compliance of logistics documents with a digitized, secure and seamless document exchange system.
    • It is set to improve logistics efficiency, reduce logistics cost, and promote multi-modality and sustainability in a big way.
    • This will enable generation, storage and interchange of logistics-related documents digitally using Aadhaar and blockchain-based security protocols for data security and authentication.
    • It will also provide a complete audit trail of document transfer, faster execution of transaction, lower cost of shipping and overall carbon footprint, easy verification of authenticity of documents, lowered risk of fraud, etc.
    • The proof of concept of the platform has been developed and executed with banks (ICICI, Axis Bank, State Bank of India and HDFC Bank) and stakeholders including freight forwarders, exporters, importers and vessel operators.

    Green House Gas (GHG) Emission Calculator

    • The GHG Calculator is an efficient, user-friendly tool and provides for calculating and comparing GHG emissions across different modes.
    • It allows for a commodity-wise comparison of GHG emissions and total cost of transportation, including their environmental cost, between movement by road and rail.
    • The tool is intended to facilitate appropriate modal choice for all concerned.

    Back2Basics: Green House Gases (GHGs)

    • A greenhouse gas (GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect.
    • The primary greenhouse gases in Earth’s atmosphere are water vapor (H 2O), carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2O), and ozone (O3).
    • Without greenhouse gases, the average temperature of Earth’s surface would be about −18 °C (0 °F), rather than the present average of 15 °C (59 °F).
    • The atmospheres of Venus, Mars, and Titan also contain greenhouse gases.

  • Thane Creek Flamingo Sanctuary proposed as Ramsar Site

    The Mumbai Metropolitan Region is likely to get its first Ramsar site at the Thane Creek Flamingo Sanctuary.

    Thane Creek Flamingo Sanctuary

    • The Maharashtra Government has declared the area along the western bank of Thane Creek as the “Thane Creek Flamingo Sanctuary” since 2015.
    • It is Maharashtra’s second marine sanctuary after the Malvan sanctuary.
    • It is recognized as an “Important Bird Area” by the Bombay Natural History Society.

    About Ramsar Convention

    • The Convention on Wetlands of International Importance (better known as the Ramsar Convention) is an international agreement promoting the conservation and wise use of wetlands.
    • It is the only global treaty to focus on a single ecosystem.
    • The convention was adopted in the Iranian city of Ramsar in 1971 and came into force in 1975.
    • Traditionally viewed as a wasteland or breeding ground of disease, wetlands actually provide fresh water and food and serve as nature’s shock absorber.
    • Wetlands, critical for biodiversity, are disappearing rapidly, with recent estimates showing that 64% or more of the world’s wetlands have vanished since 1900.
    • Major changes in land use for agriculture and grazing, water diversion for dams and canals, and infrastructure development are considered to be some of the main causes of loss and degradation of wetlands.

    What does one mean by Ramsar Site?

    • A Ramsar Site is a wetland area designated to be of international importance under the Ramsar Convention.
    • It provides the framework for national action and international cooperation for the conservation and wise use of wetlands and their resources.

  • What is Gross Environment Product?

    The Uttarakhand government recently announced it will initiate valuation of its natural resources in the form of ‘Gross Environment Product’ (GEP), said to be along the lines of Gross Domestic Product (GDP).

    Why such a move?

    • The idea of the valuation of the components of the environment is not new.
    • But it got impetus following rapid degradation of ecosystems, which led to adverse impacts on more than 60 percent of services we get from the ecosystems.

    What is Gross Environment Product (GEP)?

    • GEP is the measure of ecosystem services of any area.
    • It reflects the aggregated annual value of goods and services provided by ecosystems (forests, water bodies, oceans, etc.) to people in a given region, such as at district levels, state, and country.
    • It entails the establishment of a natural capital accounting framework by integrating ecological benefits into common measures of economic growth such as GDP.
    • It summarizes the value of ecosystem services in a single monetary metric.

    Evolution of GEP

    • The term “ecosystem services” was coined in 1981 to attract academics towards this aspect.
    • Ecosystem services represent the benefits humans get: Forests, lakes, and grasslands; timber and dyed; carbon sequestration and nutrient cycling; soil formation and productivity; and tourism.
    • The definition is still in the process of evolution. The concept received attention and now is part of global knowledge.

    Advantages offered

    • GEP can be applied as a scientific basis for Eco-Compensation and public financial transfers.
    • For example, Finance Commission’s revenue-sharing formula between the Union and the states including forest cover as a determining factor in a state’s share.
    • GEP can be applied to measure the status of ecosystem services, which is an important indicator of sustainable development.
    • It is also a critical indicator for measuring the progress of Eco-civilization.
    • Its implementation can help assess the impact of anthropological pressure on our ecosystem and natural resources- air, water, soil, forests.

    The Himalayan context

    • The Himalayas contribute substantially to the sustainability of the Gangetic Plains where 500 million people live.
    • The Union government incorporated the value of ecosystem services of its states in national accounting.
    • According to the recommendation of the 12th and 13th Finance Commissions, grants were transferred to forest-rich states in amounts corresponding to their forest covers.
    • However, considering only the forest cover in transferring funds to states is inadequate.

  • Species in news: Great Indian Bustards

    The Environment Ministry has informed the Parliament that there were no Great Indian Bustards (GIB) left in Kutch Bustard Sanctuary (KBS) in Gujarat’s Kutch district.

    Great Indian Bustards

    • GIBs are the largest among the four bustard species found in India, the other three being MacQueen’s bustard, lesser florican, and the Bengal florican.
    • GIBs’ historic range included much of the Indian sub-continent but it has now shrunken to just 10 percent of it. Among the heaviest birds with flight, GIBs prefer grasslands as their habitats.
    • GIBs are considered the flagship bird species of grassland.

    On the brink of extinction

    • The GIB population in India had fallen to just 150.
    • Pakistan is also believed to host a few GIBs and yet openly supports their hunting.

    Protection accorded

    • Birdlife International: uplisted from Endangered to Critically Endangered (2011)
    • Protection under CITES: Appendix I
    • IUCN status: Critically Endangered
    • Protection under Wildlife (Protection) Act: Schedule I

    Threats

    • Overhead power transmission
    • Poor vision: Due to their poor frontal vision, can’t detect powerlines in time and their weight makes in-flight quick maneuvers difficult.
    • Windmills: Coincidentally, Kutch and Thar desert are the places that have witnessed the creation of huge renewable energy infrastructure.
    • Noise pollution: Noise affects the mating and courtship practices of the GIB.
    • Changes in the landscape: by way of farmers cultivating their land, which otherwise used to remain fallow due to frequent droughts in Kutch.
    • Cultivation changes: Cultivation of cotton and wheat instead of pulses and fodder are also cited as reasons for falling GIB numbers.

    Supreme Court’s intervention

    • The Supreme Court has ordered that all overhead power transmission lines in core and potential GIB habitats in Rajasthan and Gujarat should be undergrounded.
    • The SC also formed a three-member committee to help power companies comply with the order.

    Conservation measures

    • In 2015, the Central government launched the GIB species recovery program.
    • Under the program, the WII and Rajasthan Forest departments have jointly set up conservation breeding centers where GIB eggs are harvested from the wild.
    • They have been incubated artificially and hatchlings raised in a controlled environment.

    Answer this PYQ in the comment box:

    Q.Consider the following pairs:

    Protected Area :: Well-known for

    1. Bhiterkanika, Odisha — Salt Water Crocodile
    2. Desert National Park, Rajasthan — Great Indian Bustard
    3. Eravikulam, Kerala — Hoolock Gibbon

    Which of the pairs given above is/are correctly matched? (CSP 2014)

    (a) 1 only

    (b) 1 and 2

    (c) 2 only

    (d) 1, 2 and 3

  • Microplastics Pollution in Ganga

     

    The Ganga is heavily polluted with microplastics at Varanasi, Haridwar, and Kanpur, Delhi-based non-profit Toxics Link claimed.

    What are Microplastics?

    • Microplastics are plastics that are less than 5 mm in size but are a major source of marine pollution.
    • Untreated sewage from many cities along the river’s course, industrial waste, and religious offerings wrapped in non-degradable plastics pile pollutants into the river as it flows through several densely populated cities.
    • The plastic products and waste materials released or dumped in the river break down and are eventually broken down into microparticles.
    • The rivers finally transport significantly large quantities downstream into the ocean, which is the ultimate sink of all plastics being used by humans.

    Microplastics in Ganga

    • They are non-degradable plastics that often entered the Ganga through industrial waste or packaging of religious offerings, its research found.
    • The density of population in the three cities also added to the problem because a large chunk of pollutants got directly discharged into the river by people living on the banks.
    • Among the three cities, the Toxics Link’s study found that sites at Varanasi showed the maximum load of microplastics in the water of the Ganga, as compared to the other two cities.
    • This might be due to cumulative downstream pollution as well as industrial and human activities.

    On a global high

    • The researchers tried to compare the microplastics concentration in Ganga water with similar studies on other rivers across the globe.
    • It included the Rhine in Europe, the Patapsco, Magothy, Rhode in North America, and the Elqui, Maipo, Biobio, and Maule in South America.
    • They found the Ganga microplastics pollution was much higher.
    • This was in spite of a higher per capita consumption of plastic in the European countries, North and South America, as compared to India.

    How does it impact people?

    • The Ganga is a source of water for not just drinking and bathing purposes but also for irrigation to a large extent.
    • Microplastics in river water, if ingested in humans or other organisms, can cause toxicity through various means.
    • Not only are these microplastics toxic themselves, they also have a tendency to absorb various toxins present in water, including harmful chemicals.
    • Although some of the effects of microplastics on public health are understood, a lot still needs to be done.

    Answer this PYQ in the comment box:

    Q. Why is there a great concern about the ‘microbeads’ that are released into the environment? (CSP 2019)

    (a) They are considered harmful to marine ecosystems.

    (b) They are considered to cause skin cancer in children.

    (c) They are small enough to be absorbed by crop plants in irrigated fields.

    (d) They are often found to be used as food adulterants.

  • Why rooftop solar and storage offers a viable future for India

    The Union government’s target of producing 40 gigawatts of rooftop solar power by 2022 is unrealistic: The country could produce only 4.4 GW rooftop solar energy till March 31, 2021, according to the Union Ministry of New and Renewable Energy.

    What is Solar Rooftop?

    • A solar photovoltaic (PV) system mounted on a rooftop of a building is a mini-power requirement or feed into the grid.
    • The size of the installation varies significantly depending on the availability of space, amount of electricity consumed by the property and the ability or willingness of the owner to invest the capital required.

    Why rooftop?

    • Rooftop solar with a storage system is a benefit for both, end consumers as well as discoms (power distribution companies).
    • A one-kilowatt (kW) rooftop system can produce three to five units of electricity a day.
    • The combination increasingly becomes cost-effective for electricity generation compared to the traditional grid supply and diesel generators.
    • In 2021, solar and storage will be cheaper than grid supply for most commercial and industrial (C&I) customers.
    • The increase in penetration of rooftop solar in the distribution grid will have a significant impact on the stability of the grid.

    A viable alternative

    • Most housing societies in urban India rely on diesel generators for power backup. However, as power availability improves in the country, diesel generators will become redundant.
    • The operational cost of diesel generators is quite high— R16-18 per unit against Rs 5-6 a unit for solar rooftop systems. So rooftop solar power makes financial sense.Solar rooftop is also a perfect solution for commercial and institutional buildings that operate mostly during the day.
    • Their rooftops can be utilized to generate electricity, and they can, partially or completely, replace diesel generators. This would also help them reduce their electricity bills.

    Question of energy storage

    • In order to integrate rooftop solar and electric vehicles, the grid needs to be flexible and smart.
    • Energy storage systems will play a key role in providing this flexibility by acting as a load when there is a surplus generation, as well as generating sources when there is a supply shortage.
    • There are two major methods of integrating battery storage into the electric grid:
    1. Front-of-the-meter (FTM): It is implemented at the utility-scale, wherein the battery system is connected to the transmission or distribution network that ensures grid reliability. This happens on a considerably large scale (~MWh scale).
    2. Behind-the-meter (BTM): The other method is implemented at the residential and commercial/industrial level, mainly to provide backup during a power failure or to store excess locally generated energy from solar rooftop photovoltaic (PV) systems.

    India’s storage capacity

    • About 34 GW / 136 GWh of battery storage is expected to be installed by 2030, according to the Central Electricity Authority of India.
    • This capacity would be used for RE integration, demand-side and peak load management services.

    Storage challenges

    • The solar segment offers a huge market opportunity for advanced battery technologies.
    • However, manufacturers have some ground to cover in addressing technical limitations of batteries, such as charging characteristics, thermal performance and requirement of boost current to charge deep cycle batteries.
    • Since solar companies may directly procure batteries from manufacturers and require after-sale services and technical support, battery companies should have wider a presence to address these expectations.

    Other key challenges

    • Rooftop solar source doesn’t match the rise in renewable energy in India.
    • While industrial and commercial consumers account for 70% of total installed capacity residential consumers remain a big untapped potential to give the boost
    • Solar rooftops also face several challenges such as little consumer awareness, lack of innovative government policies or attention, bureaucratic hassles, and limited support from discoms.

    Way forward

    • Supportive policies and innovative technological approaches are needed for the sector to achieve its potential.
    • Indian policymakers need to plan for rooftop solar plus storage, rather than rooftop solar alone with the grid as storage (net / gross metering).
    • The declining cost of storage solutions, along with that of rooftop solar solutions, is likely to change the future of the Indian power sector.
    • Several countries such as Australia, the United States, Germany, among others have already endorsed solar power with battery storage.
    • Energy storage, therefore, represents a huge economic opportunity for India.
    • The creation of a conducive battery manufacturing ecosystem on a fast track could cement India’s opportunity for radical economic and industrial transformation in a critical and fast-growing global market.

  • How the Moon ‘Wobble’ affects rising tides

    US coastlines will face increasing flooding in the mid-2030s due to a regular lunar cycle called the wobble effect that will magnify rising sea levels caused by climate change.

    What is the Moon Wobble?

    • The moon wobble is nothing but a regular swaying in the moon’s orbit.
    • It was first documented way back in 1728.
    • This wobble takes over an 18.6-year period to complete and continues in a cyclic fashion.

    How does this wobble occur?

    • High tides on this planet are caused mostly by the pull of the moon’s gravity on a spinning Earth. On most beaches, you would see two high tides every 24 hours.
    • The moon also revolves around the Earth about once a month, and that orbit is a little bit tilted.
    • moon’s orbital plane around the Earth is at an approximate 5-degree incline to the Earth’s orbital plane around the sun.
    • Because of that, the path of the moon’s orbit seems to fluctuate over time, completing a full cycle — sometimes referred to as a nodal cycle — every 18.6 years.
    • At certain points along the cycle, the moon’s gravitational pull comes from such an angle that it yanks one of the day’s two high tides a little bit higher, at the expense of the other.
    • This does not mean that the moon itself is wobbling, nor that its gravity is necessarily pulling at our oceans any more or less than usual.

    What impact does this wobble have on Earth?

    • Influences the ebb and flow of tides: The moon wobbles impacts the gravitational pull of the moon, and therefore, indirectly influences the ebb and flow of tides here on the Earth.
    • One half of the 18.6-year cycle suppresses the tides, which means that the high tides get lower, while the low tides get higher than normal.
    • Once this cycle completes, the situation flips—in the subsequent cycle, the tides are amplified, with high tides getting higher and low tides, lower.
    • The lunar cycle is expected to shift again by mid-2030, and in the coming phase, the tides will amplify once again.

    Moon wobble and climate change

    • The upcoming changes in the lunar cycle will pose a serious threat, as the amplified high tides coupled with the rising sea levels will make the risk of flooding far greater across all coastal regions of the globe.
    • The study predicts that the high tide-associated floods—also known as nuisance floods or sunny day floods—may occur in clusters that could last for months or even for longer periods!
    • This surge will be closely associated with the position of the Moon, Earth and the Sun.
    • When the Moon and Earth line up in specific ways with each other and the Sun, the resulting gravitational pull and the ocean’s corresponding response may leave city-dwellers coping with floods every day or two.

  • Places in news: Great Barrier Reef

    Chinese official has said that political tensions between Beijing and Australia were not behind a UNESCO recommendation to place the Great Barrier Reef on its endangered list.

    Great Barrier Reef

    • The Great Barrier Reef is the world’s largest coral reef system composed of over 2,900 individual reefs and 900 islands.
    • It is stretched for over 2,300 kilometres over an area of approximately 344,400 square kilometres.
    • The reef is located in the Coral Sea, off the coast of Queensland, Australia.
    • It was world heritage listed in 1981 by UNESCO as the most extensive and spectacular coral reef ecosystem on the planet.

    Importance of Corals

    Coral reefs are some of the most diverse and valuable ecosystems on Earth.

    • They support more species per unit area than any other marine environment, including about 4,000 species of fish, 800 species of hard corals and hundreds of other species.
    • This biodiversity is considered key to finding new medicines for the 21st century.
    • Medical use: Many drugs are now being developed from coral reef animals and plants as possible cures for cancer, arthritis, human bacterial infections, viruses, and other diseases.
    • Fisheries: Healthy coral reefs support commercial and subsistence fisheries as well as jobs and businesses through tourism and recreation.
    • Local economies receive billions of dollars from visitors to reefs through diving tours, recreational fishing trips, hotels, restaurants, and other businesses based near reef ecosystems.
    • Coral reef structures also buffer shorelines against 97 per cent of the energy from waves, storms, and floods, helping to prevent loss of life, property damage, and erosion.

    Answer this PYQ in the comment box:

    Q.Consider the following statements:

    1. Most of the world’s coral reefs are in tropical waters.
    2. More than one-third of the world’s coral reefs are located in the territories of Australia, Indonesia and the Philippines.
    3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests.

    Which of the above statements is/are correct?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1 and 3 only

    (d) 1 and 3 only

    Back2Basisc: Coral Reef

    • Coral reefs are built by and made up of thousands of tiny animals—coral “polyps”—that are related to anemones and jellyfish.
    • Polyps are shallow-water organisms that have a soft body covered by a calcareous skeleton. The polyps extract calcium salts from seawater to form these hard skeletons.
    • The polyps live in colonies fastened to the rocky seafloor.
    • The tubular skeletons grow upwards and outwards as a cemented calcareous rocky mass collectively called corals.
    • When the coral polyps die, they shed their skeleton on which new polyps grow.
    • The cycle is repeated for millions of years leading to the accumulation of layers of corals shallow rock created by these depositions is called a reef.

  • Why the Amazon forests are no longer acting as a carbon sink

    The Amazon forests in South America, which are the largest tropical forests in the world, have started emitting carbon dioxide (CO2) instead of absorbing carbon emissions.

    Note the countries bordered by the Amazon forests.

    Amazon forests

    • The Amazon rainforest is a moist broadleaf tropical rainforest in the Amazon biome that covers most of the Amazon basin of South America.
    • This basin encompasses 7,000,000 sq km of which 5,500,000 sq km are covered by the rainforest.
    • The majority of the forest is contained within Brazil, with 60% of the rainforest, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Bolivia, Ecuador, French Guiana, Guyana, Suriname, and Venezuela.
    • It represents over half of the planet’s remaining rainforests and comprises the largest and most biodiverse tract of tropical rainforest in the world.

    Why in news?

    • A significant amount of deforestation in eastern and southeastern Brazil has turned the forest into a source of CO2 that has the ability to warm the planet.
    • Not only the Amazon rainforests, some forests in Southeast Asia have also turned into carbon sources in the last few years as a result of the formation of plantations and fires.

    What have the researchers found?

    • Over the years as fossil-fuel emissions across the world have increased, the Amazon forests have absorbed CO2 from the atmosphere, helping to moderate the global climate.
    • But researchers are not saying that because of significant levels of deforestation (over the course of 40 years) there has been a long-term decrease in rainfall and increase in temperatures during the dry season.
    • Because of these reasons the eastern Amazon forests are no longer carbon sinks, whereas the more intact and wetter forests in the central and western parts are neither carbon sinks nor are they emitters.
    • Another reason for the eastern region not being able to absorb as much CO2 as it did previously is the conversion of forests into agricultural land.

  • Amnesty Scheme for violators of Environment Norms

    The union environment ministry has put together an amnesty scheme for infrastructure and industrial projects that have violated environmental clearance (EC) norms for Environment Impact Assessment.

    What is the Scheme?

    The new amnesty scheme empowers regulatory institutions at both central and state levels:

    (1) To identify and report cases of violation

    • It refers to identify, examine and appraise violation projects, refraining from causing further environmental damage and also compensating for causing damage to the environment.

    (2) To take action against violators in terms of closure or demolition of a project

    • It defines three different actions to be taken for the violation projects depending upon their EC status.
    • In case the project has not obtained EC, it will be ordered to close its operations.
    • If the project has undergone expansion without obtaining EC for the expanded portion, it will be ordered to revert the activity/production to the limit granted in the existing EC.

    (3) To levy penalty on them that is akin to the scale of the project

    • It entitles the regulatory authorities to levy penalties on the proponent, in addition to the bank guarantee.

    Issues with the scheme

    • There is also no established procedure to ensure that the complaints made against the violator are not dismissed without hearing.
    • This ambiguity in the memorandum leaves scope for a less transparent redressal mechanism.
    • The penalties suggested could be termed as legitimating non-compliance.

    Criticisms

    • Environmental experts argue that such a move to regularise projects, irrespective of size, scale or impact, is purely a political move.
    • They regarded this move as weakening the EIA process.
    • This will be the largest regularization scheme for projects that have operated illegally in India and added to our total environmental and social burdens.
    • Thousands of projects operate in different states without any environmental approval.

    Way forward

    • Looking at the plethora of violation cases it is imperative to develop such a mechanism.
    • However, we should not compromise the existing environmental regulations and adopt a ‘zero tolerance for violation’.

    Back2Basics: Environment Impact Assessment

    • Environment impact assessment is a process under the Environment (Protection) Act, 1986, which prevents industrial and infrastructural projects from being approved without proper oversight.
    • This process ensures that every project should go through the EIA process for obtaining prior environmental clearance.
    • EIA covers projects such as mining of coal or other minerals, infrastructure development, thermal, nuclear and hydropower projects, real estate and other industrial projects.
    • The projects are assessed based on their potential impact on the environment. Based on the assessments, they are granted or denied environmental clearance by a panel of experts.

    Loopholes in draft EIA 2020

    • The EIA new draft 2020 allows post-facto clearance.
    • This means that even if a project has come up without environmental safeguards or without getting environment clearances, it could carry out operation under the provision of the new draft EIA 2020.
    • This is disastrous because we already have several projects that are running without EIA clearances.