Category Environtal Studies

How many lions died in Gir Forest?

Between September and October 2018, the Gir forest sanctuary – the only place to find the Asiatic lion in the wild today – lost nearly 25 of its most popular inhabitants. The death of lions is believed to have been caused by a potent combination of canine distemper virus and babesiosis, a disease caused by tick-borne parasites, according to government officials. The officials also said that the lions belonged to one pride. Following the deaths, 33 lions from the area were rescued, quarantined and vaccinated and kept under observation. Interestingly, answering a question at the legislative Assembly in early 2019, the Gujarat government said that over 200 lions had died in the Gir forest region in the previous two years (2017 and 2018).

Canine Distemper is a viral disease that is frequent in dogs, foxes, wolves, big cats and even primates. It is caused by a single-stranded RNA virus of the family Paramyxoviridae (the family of viruses causing measles, mumps and bronchiolitis in humans). It infects the spinal cord and brain and also the respiratory and gastrointestinal tracts. The virus is believed to have a 50% fatality rate in dogs.

In 1994, the CDV was responsible for an epidemic in the Serengeti region of Africa, where 1,000 lions died in three weeks. Its prevalence in India has not been studied and only a few reports are available regarding its detection in wild carnivores.

 

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What has Greta Thunberg done for the environment?

It’s not Al Gore. It’s not DiCaprio. It’s a teenager that’s undeniably the face of the environment chapter in the book of impactful stories from the decade. Swede Greta Thunberg’s story begins on August 20, 2018, when the 15-year-old skips school to protest outside parliament for more action against climate change, with just a placard in hand. Within a week, she is joined by students, teachers, parents, and has the attention of the media. Soon enough, she marks Fridays for climate protest, and suggests students everywhere take up the “Fridays of Future” campaign by staging walkouts at their own schools. How she made an entire world hear her out is history. When a few world leaders undermined her concerns, determination and impact, she came up with witty updates on her social media pages, showing them – and us – that she’s more than just a concerned teenager asking irresponsible adults “How Dare You?”

 

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What were the 3 major hurricanes of 2017?

The U.S. suffered three hurricanes – Hurricane Harvey, Irma and Maria in just two months, August and September 2017. It would also turn out to be among the five costliest-ever to hit the country. The National Oceanic and Atmospheric Administration announced that together they cost the country USD 265 billion. The storms brought widespread death and destruction to Texas, Florida, Puerto Rico and the U.S. Virgin Islands. Since the hurricanes killed hundreds of people and brought misery and hardship to millions of people and brought misery and hardship to millions of Americans, the World Meteorological Organization decided to retire the names of these hurricanes.

NOAA said the dollar amounts are “the estimated total costs of these events — that is, the costs in terms of dollars that would not have been incurred had the event not taken place. Insured and uninsured losses are included in damage estimates.” 

In all, 2017’s hurricanes caused more than a quarter-trillion dollars in insured and uninsured losses, the National Hurricane Center reported. 

 

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When did the US withdraw from the Paris agreement?

On June 1, 2017 the U.S. President Donald Trump announced his decision to pull out of the Paris Agreement that his predecessor had signed. The agreement had come into force on November 4, 2016. Trump claimed it “gives undue advantage to India and China at the cost of the United States’ interests”, and that it “is less about the climate and more about other countries gaining a financial advantage over the U.S.”. He also insisted that the accord would have negative impacts on job growth, manufacturing and industries. His speech suggested that he was open to negotiations to “make a deal that’s fair”.

To date there are only two other countries that have not yet signed on to the Paris Agreement: Syria and Nicaragua. Syria, which remains in the throes of a destructive civil war, noted that it was not in a position to sign such agreements because of ongoing sanctions from Western countries. The government of Nicaragua, however, refused to sign on for different reasons. Nicaragua believes that the Paris Agreement does not go far enough to reduce emissions, arguing that wealthy countries such as the United States should have been forced to make deeper commitments.

 

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Which is the World’s largest marine reserve created off Antarctica?

In October 2016, a vast stretch of ocean off Antarctica received international protection to become the world’s largest marine reserve. Over 15 lakh sq.km of water in Ross Sea is protected, thanks to the decision of the international body that oversees the waters around Antarctica- the Commission for the Conversation of Antarctica Marine Living Resources, comprising 24 countries. The nutrient-rich waters of the region are the most productive in the Antarctic, and the protection will guard everything from krills to penguins and whales. Unfortunately, only two years later, Russia, Norway and China would stop global efforts to turn a huge tract of pristine Antarctic Ocean into the world’s biggest sanctuary of about 1.8 million sq.km.

 

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What’s destroying the Great Barrier Reef?

Due to higher-than-normal water temperatures in 2015 and 2016, Australia’s Great Barrier Reef suffered its worst-ever coral bleaching event on record. According to a November report by researchers at ARC Centre of Excellence for Coral Reef Studies in James Cook University, about 67% coral had died in the worst-hit northern part. However, those in the southern part were in good health, while the central part of the Reef witnessed a six % die-off, the report said. Since coral bleaching (or die-off) usually occurred as a result of continuous warm water temperatures, scientists were concerned about the recovery of the corals.

The Great Barrier Reef is made by trillions of tiny invertebrate creatures known as coral polyps, which have built it over the past 600,000 years. The polyps, which excrete calcium carbonate to make reefs, are extraordinarily sensitive to changes in water temperature. When it rises by two to three degrees Celsius above normal levels many species of coral are forced to expel the multicoloured algae that live within its tissues, an effect known as “bleaching”.  The white coral skeletons that remain can regenerate if temperatures fall and water quality conditions are good. But in many instances entire reef systems can be destroyed if water temperatures remain elevated for several months. 

 

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