Category Pollution

What is the purpose of National Green Tribunal?

Established a year earlier under the National Green Tribunal Act 2010, the National Green Tribunal began functioning in July 2011. This specialized body is “equipped with the necessary expertise to handle environmental disputes involving multi-disciplinary issues’ and is guided by principles of natural justice. It has aimed at disposing of causes related to forest, environment, biodiversity, air and water. While the principal bench function s from New Delhi, the zonal benches function from Bhopal, Pune, Kolkata and Chennai. The setting up of the tribunal was seen a huge step towards realizing environmental democracy. Hundreds of appeals/petitions are heard and judgments delivered every year. For instance, over 500 judgments were delivered by the tribunal in 2016, in cases relating to pollution, conservation, industry operations, thermal power plants, mining operations, and environmental compensation, among others.

 

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When the International Year of Biodiversity was declared?

The United Nations (the U.N.) declared 2010 the International Year of Biodiversity. Throughout the year, several key initiatives were organized to spread awareness on the need to promote biodiversity conversation and encourage everyone – as individuals and groups – worldwide to take mindful steps to stop the loss of biodiversity. That year, the U.N.’s Convention on Biological Diversity held its 10th biannual meeting in Nagoya, Japan. This international legally binding treaty, which came into force in 1993, aims to encourage actions that will lead to a sustainable future.

Biodiversity — the variety of all life forms, from genes up — is vital because diversity makes for healthy, stable ecosystems. From coral reefs to the Kalahari, these natural ‘balancing acts’ are intrinsically valuable. But beyond beauty and amenity, ecosystems also provide essential ‘services’ such as breathable air, clean water and fertile soils. Fisheries, agriculture, medicine and many traditions and ways of life all depend on biodiverse ecosystems.

Clearly, biodiversity is key not just to life on Earth, but to economies and cultures. And for the poor, who often depend directly on land and sea for subsistence, it is literally a lifeline.

 

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Which is considered to be the largest marine oil spill?

Also called the Gulf of Mexico oil spill, Deepwater Horizon oil spill is considered to be the largest marine oil spill in history. It occurred on April 20, 2010 when the Deep Horizon oil rig exploded in the Gulf of Mexico and off the coast of Louisiana, the U.S. The rig was leased by London-based oil company BP. By the time the leak from the exploratory well was capped 87 days later, more than three million barrels of oil had leaked into the waters while the explosion itself had claimed 11 lives. The disaster has had environmental, health and economic impacts.

An estimated 53,000 barrels were flowing into the Gulf of Mexico every day.

The accident also made extensive damages to the marine environment. According to the Centre for Biological Diversity, the oil spill killed over 82,000 birds, 25,900 marine mammals, 6,000 sea turtles and tens of thousands of fish, among others.

 

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What is the role of climate change in Australia bushfires?

Over the last few decades, there has been a significant spike in the number of wildfires. Greenhouse gas emissions have led to an increase in global temperature. As warmer temperatures hasten evaporation, the land subsequently turns drier, enhancing the chances of wildfires.

A 2019 Australian government report on wildfires and climate change said human-caused climate change has resulted in more dangerous weather conditions for bushfires in recent decades for many regions of Australia.

 Heatwave and drought

Fire season in Australia is always dangerous. But conditions have been unusually severe this year. Australia is experiencing one of its worst droughts in decades. Meanwhile, a heatwave last December broke the record for highest nationwide average temperature, with some places sweltering under temperatures well above 40 degrees Celsius.

Fire season has changed

With climate change, weather conditions are growing more extreme, and for years, the fires have been starting earlier in the season and spreading with greater intensity in Australia. The fire season is starting earlier and is about two to four months longer, especially in south and east Australia. The normal peak fire season is later in summer, which is January and February. Australia is just entering its summer season, meaning the country could be months away from finding relief.

 

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What are the impacts on animals of Australian bushfires?

 Though it is estimated that nearly half-a-billion animals have been affected in one State alone, it is difficult to get the exact number until fires subside enough to allow surveys of the burned areas. Fires have been part of the Australian landscape for thousands of years. Many species and ecosystems have evolved to cope and later populate nearby unaffected land. But as climate change fuels longer five seasons and more frequent, intense fires, it could become increasingly difficult for animals to adapt newer escape strategies and for ecosystem to bounce back.

In the line of fire

Smaller mammals and reptiles can escape the blazes by burrowing underground or hiding in rocks.

But some are not good at coping heat or stress. Wombat, the small, stubby-legged marsupial, can’t run very fast or far. Kolas are particularly vulnerable to bushfires as their slow movement and tree-dwelling lifestyle make it difficult for them to escape. Koalas and kangaroos are primarily killed directly by the fires. In this season, nearly a third of all koalas in New South Wales have died and about a third of their habitat has been destroyed according to a government estimate.

Ecosystems are built on balance – once one element is thrown off, everything is affected. Even if animals don’t die from the flames or smoke, they would eventually do from the fire’s aftermath. After their habitat is destructed, there will be no shelter or food left to survive on. These animals’ recovery depends not only on their population size, but also on the condition of their habitat.

 

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What is wildfire?

An uncontrolled fire in an area of combustible vegetation that spreads quickly, wiping out large areas of land is called a wildfire. A wildfire can also be termed a forest fire, a grass fire, a peat fire or a bushfire depending on the type of vegetation.

During summer, when there is no rain for months, the forests become littered with dry leaves and twigs, which could burst into flames ignited by the slightest spark.

Natural causes: Lightening is the most common cause of bushfire. There are three conditions for a bushfire to spread – fuel, oxygen and a heat source. In the forest, anything that is flammable is a fuel. This includes tall, dry grass, bushes and trees. High temperature, drought and dry vegetation are a perfect combination for igniting a forest fire.

Human-made disaster: Human neglect such as downed powerlines, sparks from tools or forest machinery, abandoned campfires and discarded cigarette butts can spark fires. People also tend to clear forests by setting them on fire to pave way for cultivation. Sometimes they set fire to scare away wild animals and the fire could spread and turn disastrous.

In Australia:

Summer is the season of fire in Australia with hot, dry weather making it easy for blazes to start and spread. Most of the time, it is natural causes such as lightning that trigger a fire, but sometimes human are also to blame. New South Wales police have charged at least 24 people with deliberately starting bushfires, and have taken legal action against 183 people for fire-related offences since November, according to reports.

 

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