Environmental Pollution Paragraph In Bengali

[Juliano Nichols]

Landrestoration is a key pillar of the UN Decade on Ecosystem Restoration (2021-2030), a rallying call for the protection and revival of ecosystems all around the world, which is critical to achieve the Sustainable Development Goals.

2024 will mark the 30th anniversary of the UN Convention to Combat Desertification. The sixteenth session of the Conference of the Parties (COP 16) to the United Nations Convention to Combat Desertification (UNCCD) will be held in the Saudi capital, Riyadh, from 2 to 13 December 2024.

Led by the United Nations Environment Programme (UNEP) and held annually on 5 June since 1973, World Environment Day is the largest global platform for environmental public outreach and is celebrated by millions of people across the world. In 2024, it is hosted by Saudi Arabia.

Time is running out, and nature is in emergency mode. To keep global warming below 1.5C this century, we must halve annual greenhouse gas emissions by 2030. Without action, exposure to air pollution beyond safe guidelines will increase by 50 per cent within the decade and plastic waste flowing into aquatic ecosystems will nearly triple by 2040.

Join the #GenerationRestoration movement through the official website of World Environment Day 2024. You can access more interesting information, the actions you can carry out to contribute, as well as a large number of materials to promote the movement through social media. Every performance, no matter how small, matters.

The UN Decade on Ecosystem Restoration focuses on eight major types of ecosystems that we have dangerously degraded. Each can be restored by reducing the pressures they face and with on-the-ground action to speed their recovery. Read all about the challenges and opportunities for each ecosystem in the scientific flagship report and the Ecosystem Restoration Playbook.

In 2015, Government of India, together with IIT Kanpur launched the National Air Quality Index.[13] In 2019, India launched 'The National Clean Air Programme' with tentative national target of 20%-30% reduction in PM2.5 and PM10 concentrations by 2024, considering 2017 as the base year for comparison. It will be rolled out in 102 cities that are considered to have air quality worse than the National Ambient Air Quality Standards.[14] There are other initiatives such as a 1,600-kilometre-long and 5-kilometre-wide The Great Green Wall of Aravalli green ecological corridor along Aravalli range from Gujarat to Delhi which will also connect to Shivalik hill range with planting of 1.35 billion (135 crore) new native trees over 10 years to combat the pollution.[6] In December 2019, IIT Bombay, in partnership with the McKelvey School of Engineering of Washington University in St. Louis, launched the Aerosol and Air Quality Research Facility to study air pollution in India.[15] According to a Lancet study, nearly 1.67 million deaths and an estimated loss of US$28.8 billion worth of output were India's prices for worsening air pollution in 2019.[16]

Fuel wood and biomass burning is the primary reason for near-permanent haze and smoke observed above rural and urban India, and in satellite pictures of the country. Fuelwood and biomass cakes are used for cooking and general heating needs. These are burnt in cook stoves known as chulha (also chullha or chullah) in some parts of India. These cook stoves are present in over 100 million Indian households, and are used two to three times a day, daily. Some reports, including one by the World Health Organization, claim 300,000 to 400,000 people die of indoor air pollution and carbon monoxide poisoning in India because of biomass burning and use of chullhas.[19] The carbon containing gases released from biomass fuels are many times more reactive than cleaner fuels such as liquefied petroleum gas.[20] Air pollution is also the main cause of the Asian brown cloud, which is delaying the start of the monsoon. The Burning of biomass and firewood will not stop until electricity or clean burning fuel and combustion technologies become reliably available and widely adopted in rural and urban India.

India is the world's largest consumer of fuelwood, agricultural waste and biomass for energy purposes. From the most recent available nationwide study, India used 148.7 million tonnes coal replacement worth of fuel-wood and biomass annually for domestic energy use. India's national average annual per capita consumption of fuel wood, agricultural waste and biomass cakes was 206 kilogram coal equivalent.[21] The overall contribution of fuelwood, including sawdust and wood waste, was about 46% of the total, the rest being agricultural waste and biomass dung cakes. Traditional fuel (fuelwood, crop residue and dung cake) dominates domestic energy use in rural India and accounts for about 90% of the total. In urban areas, this traditional fuel constitutes about 24% of the total.[21] India burns tenfold more fuelwood every year than the United States; the fuelwood quality in India is different from the dry firewood of the United States; and, the Indian stoves in use are less efficient, thereby producing more smoke and air pollutants per kilogram equivalent.

Some Indian taxis and auto-rickshaws run on adulterated fuel blends. Adulteration of gasoline and diesel with lower-priced fuels is common in South Asia, including India.[23] Some adulterants increase emissions of harmful pollutants from vehicles, worsening urban air pollution. Financial incentives arising from differential taxes are generally the primary cause of fuel adulteration. In India and other developing countries, gasoline carries a much higher tax than diesel, which in turn is taxed more than kerosene meant as a cooking fuel, while some solvents and lubricants carry little or no tax.

Traffic congestion is severe in India's cities and towns.[24] Traffic congestion is caused by several reasons, some of which are: increase in number of vehicles per kilometre of available roads, a lack of intra-city divided-lane highways and intra-city expressways networks, lack of inter-city expressways, traffic accidents and chaos due to poor enforcement of traffic laws.

Traffic congestion reduces the average traffic speed. At low speeds, scientific studies reveal that vehicles burn fuel inefficiently and pollute more per trip. For example, a study in the United States found that for the same trip, cars consumed more fuel and polluted more if the traffic was congested, than when traffic flowed freely. An average trip speeds between 20 and 40 kilometres per hour, the cars pollutant emission was twice as much as when the average speed was 55 to 75 kilometres per hour. At average trip speeds between 5 and 20 kilometres per hour, the cars pollutant emissions were 4 to 8 times as much as when the average speed was 55 to 70 kilometres per hour.[25] Fuel efficiencies similarly were much worse with traffic congestion.

Traffic gridlock in Delhi and other Indian cities is extreme.[26] This has been shown to result in a build up of local pollution, particularly under stagnant conditions.[27] The average trip speed on many Indian city roads is less than 20 kilometres per hour; a 10-kilometre trip can take 30 minutes, or more. At such speeds, vehicles in India emit air pollutants 4 to 8 times more than they would with less traffic congestion; Indian vehicles also consume a lot more carbon footprint fuel per trip, than they would if the traffic congestion was less. Emissions of particles and heavy metals increase over time because the growth of the fleet and mileage outpaces the efforts to curb emissions.[28]

India was ranked seventh among the list of countries most affected by climate change in 2019.[30] India emits about 3 gigatonnes (Gt) CO2eq of greenhouse gases each year; about two and a half tons per person, which is less than the world average.[31] The country emits 7% of global emissions, despite having 17% of the world population.[32] The climate change performance index of India ranks eighth among 63 countries which account for 92% of all GHG emissions in the year 2021.[33]

Temperature rises on the Tibetan Plateau are causing Himalayan glaciers to retreat, threatening the flow rate of the Ganges, Brahmaputra, Yamuna and other major rivers. A 2007 World Wide Fund for Nature (WWF) report states that the Indus River may run dry for the same reason.[34] Severe landslides and floods are projected to become increasingly common in such states as Assam.[35] Heat waves' frequency and intensity are increasing in India because of climate change.[citation needed] Temperatures in India have risen by 0.7 C (1.3 F) between 1901 and 2018.[36]

The most important reason for concern over the worsening air pollution in the country is its effect on the health of individuals. Exposure to particulate matter for a long time can lead to respiratory and cardiovascular diseases such as asthma, bronchitis, COPD, lung cancer and heart attack.[38] The Global Burden of Disease Study for 2010, published in 2013, had found that outdoor air pollution was the fifth-largest killer in India and around 620,000 early deaths occurred from air pollution-related diseases in 2010.[39] According to a WHO study, 13 of the 20 most-polluted cities in the world are in India; however, the accuracy and methodology of the WHO study was questioned by the Government of India.[39] India also has one of the highest number of COPD patients and the highest number of deaths due to COPD.

The Global Burden of Disease Study of 2017 analysed in a report by The Lancet indicated that 76.8% of Indians are exposed to higher ambient particulate matter over 40 μg/m3, which is significantly above the national limit recommenced by national guidelines on ambient air pollution. The study estimated that of 480.7 million Disability-Adjusted Life Years in India 4.4% of could be ascribed to ambient particulate matter pollution and 15.8 million of them were the result of polluted air in households. In terms of average life expectancy it is suggested that average life expectancy in India would increase by 1.7 years if exposure was limited to national minimum recommendations.[44]

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