upsconline.com https://www.upsconline.com New Vision IAS Academy Tue, 15 Apr 2025 11:47:29 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://www.upsconline.com/wp-content/uploads/2020/06/favicon.ico upsconline.com https://www.upsconline.com 32 32 THE WALLACE LINE   https://www.upsconline.com/the-wallace-line/ https://www.upsconline.com/the-wallace-line/#respond Tue, 15 Apr 2025 08:34:14 +0000 https://www.upsconline.com/?p=2317

The Wallace Line is an imaginary line that intersects the Lombok Strait between the Indonesian islands of Bali and Lombok to the south, and extends north through the Makassar Strait between Kalimantan (Borneo) and Sulawesi. 

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CURATIVE PETITION (सुधारात्मक याचिका) https://www.upsconline.com/curative-petition-%e0%a4%b8%e0%a5%81%e0%a4%a7%e0%a4%be%e0%a4%b0%e0%a4%be%e0%a4%a4%e0%a5%8d%e0%a4%ae%e0%a4%95-%e0%a4%af%e0%a4%be%e0%a4%9a%e0%a4%bf%e0%a4%95%e0%a4%be/ https://www.upsconline.com/curative-petition-%e0%a4%b8%e0%a5%81%e0%a4%a7%e0%a4%be%e0%a4%b0%e0%a4%be%e0%a4%a4%e0%a5%8d%e0%a4%ae%e0%a4%95-%e0%a4%af%e0%a4%be%e0%a4%9a%e0%a4%bf%e0%a4%95%e0%a4%be/#respond Thu, 08 Aug 2024 11:40:00 +0000 https://www.upsconline.com/?p=2352

A curative petition, in simple words, is the final and last option for the people to acquire justice as mentioned and promised by the Constitution of India. The concept originated from the case of Rupa Ashok Hurra Vs. Ashok Hurra and Anr. where the  following question arose before the court of law- ‘whether an aggrieved person is entitled to any relief against the final judgment/order of the Supreme Court, after the dismissal of a review petition?’

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GUILLAIN – BARRE SYNDROME https://www.upsconline.com/guillain-barre-syndrome/ https://www.upsconline.com/guillain-barre-syndrome/#respond Tue, 09 Jul 2024 09:27:00 +0000 https://www.upsconline.com/?p=2334

Guillain-Barré syndrome (GBS) (pronounced Ghee-yan Bah-ray) is a rare neurological disorder in which  immune system of a person mistakenly attacks part of his peripheral nervous system—the network of nerves that carries signals from the brain & spinal cord to the rest of the body. It is also called acute inflammatory demyelinating polyradiculoneuropathy (AIDP).

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ELECTORAL TRUST https://www.upsconline.com/electoral-trust/ https://www.upsconline.com/electoral-trust/#respond Tue, 04 Jun 2024 09:18:00 +0000 https://www.upsconline.com/?p=2331 An Electoral Trust (ET) is a body registered under the Companies Act, 1956, solely tasked with distributing contributions received from individuals or companies to political parties.

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SPIDERS ON MARS https://www.upsconline.com/spiders-on-mars/ https://www.upsconline.com/spiders-on-mars/#respond Wed, 15 May 2024 06:03:00 +0000 https://www.upsconline.com/?p=2327

The dendritic fractal patterns, like the branching pattern of tree roots or river drainage networks, are common on Earth. Recently, similar patterns have been detected on planetary surfaces such as Mars and Europa, the smallest of the four moons orbiting Jupiter.

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WOLF-DOG HYBRID IN INDIAN SAVANNAH https://www.upsconline.com/wolf-dog-hybrid-in-indian-savannah/ https://www.upsconline.com/wolf-dog-hybrid-in-indian-savannah/#respond Mon, 15 Apr 2024 11:41:00 +0000 https://www.upsconline.com/?p=2322 A citizen science project prompted scientists to study hybridisation between grey wolves (Canis lupus) & feral dogs (Canis lupus familiaris). ‘Citizen conservationists of Grasslands Trust’ in Maharashtra’s Pune district have been following wolf packs in and around Pune for a decade.

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NATIONAL MONETIZATION PIPELINE https://www.upsconline.com/national-monetization-pipeline/ https://www.upsconline.com/national-monetization-pipeline/#respond Sat, 04 Sep 2021 13:41:05 +0000 https://www.upsconline.com/?p=2259

Asset monetization is the process of unlocking the value of investment made in public assets which have not yielded appropriate or potential returns so far. 

National Monetization Pipeline (NMP)  intended in unlocking value in infrastructure assets by involving private companies across the different  sectors. 

As per the Ministry of finance,  asset monetization does not involve selling of land and it is about monetizing brownfield assets. The projects have been identified across sectors, with roads, railways and power being the top segments. 

According to Ministry ,“Ownership of assets will remain with the government and there will be a mandatory hand-back.” Asset monetization will unlock resources and lead to value unlocking.” 

In a monetization transaction, the government is basically transferring revenue rights to private parties for a specified transaction period in return for upfront money, a revenue share, and commitment of investments in the assets. 

Real estate investment trusts (REITs) and infrastructure investment trusts (InvITs), for instance, are the key structures used to monetize assets in the roads and power sectors. 

These are also listed on stock exchanges, providing investors liquidity through secondary markets as well. While these are a structured financing vehicle, other monetization models on PPP (Public Private Partnership) basis include: Operate Maintain Transfer (OMT), Toll Operate Transfer (TOT), and Operations, Maintenance & Development (OMD).  

OMT and TOT have been used in highways sector while OMD is being deployed in case of airports.

According to Union Minister of finance , NMP estimates aggregate monetization potential of ₹6 lakh crores through core assets of central government over the four-year period from FY 2022 to FY 2025 .

The NMP has been announced to provide a clear framework for monetisation and give potential investors a ready list of assets to generate investment interest.  It will have a dashboard to track the progress and provide visibility to investors.

The government has stressed that these are brownfield assets, which have been “de-risked” from execution risks, and therefore should encourage private investment. 

Structuring the monetization transactions, providing a balance risk profile of assets, and effective execution of the NMP will be key challenges.

Union Budget 2021-22 had identified monetisation of operating public infrastructure assets as a key means for sustainable infrastructure financing.

NITI Aayog in consultation with infra line ministries has prepared the report on NMP.

The aggregate asset pipeline under NMP over the four-year period is indicatively valued at ₹6 lakh crore. The estimated value corresponds to 14% of the proposed outlay for Centre under the National Infrastructure Pipeline (₹43 lakh crore) 

According to Ministry of Finance, the end objective of this initiative is to enable “infrastructure creation through monetization” wherein the public and private sector collaborate, each excelling in their core areas of competence, so as to deliver socio-economic growth and quality of life to the country’s citizens.

NHAI & PGCIL will be taking the charge for  this. Transmission assets worth ₹7,000 crores will be transferred to PGCIL. 

  These include one InvIT (Infrastructure Investment Trust) each sponsored by the National Highways Authority of India (NHAI) and Power Grid (PGCIL) that will attract international and domestic institutional investors. As many as 25 Airports Authority of India (AAI) airports, including the ones at Chennai, Bhopal, Varanasi and Vadodara, as well as 40 railway stations, 15 railway stadiums and an unidentified number of railway colonies have been identified for getting private investments. Other core infrastructure assets that will be rolled out under the Asset Monetization Program are: NHAI operational toll roads; transmission assets of PGCIL; oil and gas pipelines of GAIL, IOCL and HPCL; AAI airports in Tier-II and -III cities; other railway infrastructure assets; warehousing assets of CPSEs (Central Public Sector Enterprises) such as Central Warehousing Corporation and NAFED; and sports stadia.

The NMP will run co-terminus with the National Infrastructure Pipeline of Rs 100 lakh crore announced in December 2019 .  

The estimated amount to be raised through monetisation is around 14% of the proposed outlay for the Centre of Rs 43 lakh crore under NIP. 

The other assets on the NMP list include: 26,700 km of roads, railway stations, train operations and tracks, 2,8608 Ckt km worth of power transmission lines, 6 GW of hydroelectric and solar power assets, 2.86 lakh km of fibre assets and 14,917 towers in the telecom sector, 8,154 km of natural gas pipelines and 3,930 km of petroleum product pipelines. 

In the roads sector, the government has already monetised 1,400 km of national highways worth Rs 17,000 crore. Another five assets have been monetised through a PowerGrid InvIT raising Rs 7,700 crore. 

Also, 15 railway stations, 25 airports and the stake of central government in existing airports and 160 coal mining projects, 31 projects in 9 major ports, 210 lakh MT of warehousing assets, 2 national stadium and 2 regional centers, will be up for monetization.

Redevelopment of various government colonies and hospitality assets including ITDC hotels is expected to generate Rs 15,000 crore. 

Among the key challenges that may affect the NMP roadmap are: lack of identifiable revenues streams in various assets, level of capacity utilization in gas and petroleum pipeline networks, dispute resolution mechanism, regulated tariffs in power sector assets, and low interest among investors in national highways below four lanes. 

Practical  execution of the plan remains key to its success. Structuring of monetization transactions is being seen as key.  

The slow pace of privatization in government companies including Air India and BPCL, and less-than-encouraging bids in the recently launched PPP initiative in trains, indicate that attracting private investors interest is not that easy

Monetisation potential of toll road assets , is limited by the percentage of stretches having fourlane and above configuration. .

 As per the NMP framework, the total length of national highway (NH) stretches with four-lane and above is estimated to be about 23% of the total NH network . 

The government has used four key methods to arrive at indicative value of Rs 6 lakh crore worth of assets to be monetized . This is based on the suitability of the valuation approach to the nature of the assets and the accompanying revenue streams. For roads, power transmission and telecom tower assets, the government has used the market approach, where the value is determined based on comparable market transactions for the identified asset classes. In case of proposed monetization of 26,700 km of national highways , the per km estimated is based on recent TOT (toll operate transfer) transactions and asset matrix  to be monetized. While average realization by NHAI under past TOT concessions successfully awarded has been in the range of Rs 9-14 crore per km, a lower range at Rs 6 crore per km has been assumed to factor in certain lower traffic stretches.  

The similar approach has  been used to assess the estimated value of power transmission assets . The monetization value of the transmission assets has been considered as Rs 1.58 crore per circuit (ckt) km, based on reference value on Power Grid’s recently closed InvIT. For total assets of 28,608 ckt km, the estimated value comes to Rs 45,200 crore. 

Capex approach has been considered for monetization through PPP (public-private partnership)-based models envisaging capital expenditure by private sector. The principle under the capex approach is that in the absence of the asset monetization transaction, the Public Asset Owner would have to incur the outlay towards augmentation and O&M (operations & maintenance) of the brownfield asset.  

This method has been deployed to value most assets in sectors including ports, airports, railway stations, passenger trains, freight terminals, railway colonies redevelopment, track infra under dedicated freight corridor, sports stadium, warehousing, BharatNet fibre asset, mining, and urban housing redevelopment. 

Book-value approach has been used for asset classes where information on comparable market transactions or estimated capex investment is not available. The book value of the assets has been estimated considering the average capex cost incurred to construct a similar category of asset adjusted for the age of the asset and number of years of operation. Power generation assets have been valued at book value.

Enterprise-value approach has been considered for assets where information on existing revenue stream is available or can be reasonably projected based on assumptions and/or available data on prevailing tariff for an asset/asset class.  

In such cases, net present value of discounted cash flows has been worked out to determine indicative monetisation value. This method has been used to value natural gas and product pipelines as well as for track, signalling, and overhead equipment. 

The National Monetization Pipeline was not discussed in Parliament or any Parliamentary committee, or the consultative committee of the Finance Ministry. 

While roads, railways and power account for around 65 per cent of the proceeds of the programme, the list of assets detailed is spread across sectors such as telecom, aviation, mining and warehousing, suggesting a more wide-ranging programme. While the targets are aggressive, a four-year roadmap, providing in detail the assets the government intends to lease, should provide clarity to investors and generate interest.

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DECENTRALISED URBAN EMPLOYMENT AND TRAINING https://www.upsconline.com/decentralised-urban-employment-and-training/ https://www.upsconline.com/decentralised-urban-employment-and-training/#respond Wed, 01 Sep 2021 15:51:57 +0000 https://www.upsconline.com/?p=2250

Urban employment scheme called Decentralized Urban Employment and Training (DUET) was introduced by the economist Jean Dreze . Under the scheme, State or Union government  would issue “job stamps”, each standing for one day of work at the minimum wage. The job stamps would be liberally distributed to approved public institutions such as universities, hostels, schools, hospitals, health centres, museums, libraries, shelters, jails, offices, departments, railway stations, transport corporations, public-sector enterprises, neighborhood associations and urban local bodies. 

These institutions would be free to use the stamps to hire labour for odd jobs and small projects that do not fit easily within their existing budgets and systems.

Wages, paid by the government, would go directly to the workers’ accounts against job stamps certified by the employer. 

This scheme has some advantages like,  activating a multiplicity of potential employers, avoiding the need for special staff, facilitating productive work . It has potential to  ensure secure entitlement to minimum wages, and possibly other benefits for workers . 

 Many States have  problems of dismal maintenance of public premises , DUET could provide alternative solution for it. 

To avoid collusion, an independent placement agency would take charge of assigning workers to employers.

The scheme may incorporate some skilled workers to ensure win win situation for employers and consumer citizens. This may result in widening and diversification of possible employment opportunities.  

So there is a possible need of training programmes in the scheme . It would also help to impart ‘an on the job’ training component in the scheme,as they work alongside skilled workers. 

Attracting skilled workers, may required to pay a fair amount of work in urban areas

Here is a variant of DUET  where there is no thinking of a minimum quota for women, like the one-third quota under the National Rural Employment Guarantee Act (NREGA), but of an absolute priority: as long as women workers are available, they get all the work. In fact, women could also run the placement agencies, or the entire programme for that matter. 

To facilitate women’s involvement, most of the work could be organized on a part-time basis.  It would give them some economic independence and bargaining power within the family, and help them to acquire new skills.  

Giving priority to women would have two advantages . First, it would reinforce the self-targeting feature of DUET, because women in relatively well-off households are unlikely to go for casual labour at the minimum wage. Second, it would promote women’s general participation in the labour force. India has one of the lowest rates of female workforce participation in the world. 

The will of the public institution to make active use of the job stamps will be an important aspect of DUET.  

There is a big difference between DUET and the “service voucher” schemes that have proved so popular in some European countries. The service vouchers are used by households instead of public institutions, for the purpose of securing domestic services such as cooking and cleaning in cheaper rates. 

The service vouchers are not free, but  are highly subsidized, and households have an advantage  to use them in buying domestic services at cheaper rates .  

In the DUET scheme, the use of job stamps relies on a sense of responsibility among the heads of public institutions, not their self-interest ,So the effective use of job stamps is uncertain.  According to Jean Dreze, the best possible way will be the implementation of a pilot scheme in selected districts or in  municipalities. 

DUET’s  scheme has a simple functional  design, and has potential  to be implemented with available  administrative arrangements. It can use local employing agencies, instead of just the Urban Local Bodies (ULB), which might  be uncertain about generation of  work in required amounts.  

 Role of worker cooperatives  can be potential and effective  ‘placement agencies’ under the scheme. It can play an important role in  ending the monopoly  of labour contractors in urban areas.  

DUET needs to incorporate dedicated budgets for non-labour costs, or fiscal constraints may prevent it from starting in the first place.

Migrants can be the mostly potential beneficiary of the scheme , may be not having any fixed urban address, domicile or residence proof, so it should not be made mandatory. 

workers under the programme must be provided with basic rights such as equal wages for women and men, worksite facilities, insurance and compensation for accidents/injuries, compensation for delays in wage payments, mandatory disclosure of information related to the implementation of the scheme, and provisions for social audit.

The role of the Public Works Department (PWD) needs to be designed properly in relevance with the scheme as,  repair and maintenance of public institutions is the administrative jurisdiction of the PWD in every state. 

At present, state government allocates funds for urban public projects such as the maintenance of government buildings, and selects a few applications from amongst the applicants given their budget. Under DUET, the allocative and selection decision would still be in the hands of the state government. 

The National Urban Livelihood Mission (NULM) could possibly play a role in DUET as well. 

 Several states have already launched urban employment programmes in response to the pandemic. In addition to Odisha’s Urban Wage Employment Initiative (UWEI) and Himachal’s Mukhyamantri Shahri Aajeevika Guarantee Yojana (Chief Minister Urban Livelihood Guarantee Programme), the latest one is Jharkhand’s Mukhyamantri Shramik Yojana (Chief Minister Workers Programme). While it is early days yet to say much about the impact of these schemes, Kerala’s Ayyankali Urban Employment Guarantee Scheme has been running for a few years already and can provide some lessons for the way forward. 

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DIRECT MONETIZATION https://www.upsconline.com/direct-monetization/ https://www.upsconline.com/direct-monetization/#respond Tue, 13 Jul 2021 15:44:11 +0000 https://www.upsconline.com/?p=2098 Printing of the currency has its association with the increase in inflation.  Because if everyone has more money, prices go up instead. Increasing demand  will increase the rate of inflation over time .  

This happened recently in Zimbabwe, in Africa, and in Venezuela, in South America, when these countries printed more money to try to make their economies grow.

Monetizing the deficit is when the RBI directly purchases government bonds (G-Secs) from the primary market to help the Centre’s expenditure.

In turn, the RBI prints more money to finance this debt. In other words, monetization of deficit happens when RBI buys government securities directly from the primary market to fund government’s expenses.

When the printing of currency for a longer period of time, resulted into the “hyperinflation”. 

When Zimbabwe was hit by hyperinflation, in 2008, prices rose as much as 231,000,000% in a single year. 

To get sustained , a country has to make and sell more things – whether goods or services. This makes it safe to print more money, so that people can buy those extra things. 

When a country prints more money without making more things, then prices just go up.

No one is making any more of these models. So even if everyone gets more money to spend, it won’t mean that more people can afford to buy them. The sellers will just put the price up. 

At the moment, USA can  sustain the  printing of its currency . Because the demand of dollar is usually very high because of its importance in international trade.

Most of the valuable things that countries around the world trades, including gold and oil, are priced in US dollars. 

If the US wants to buy more things, it really can just print more dollars. Though if it printed too many, the price of those things in dollars would still go up. 

When poorer countries can only print their own currency, not US dollars. And if they print a lot more, their prices will go up too fast, and people will stop using that money. 

When people will swap goods for other goods, or ask to be paid in US dollars instead. That’s what happened in Zimbabwe and Venezuela, and many other countries that were hit by hyperinflation. 

Venezuela tried to protect its people from hyperinflation by passing laws to keep a low price on things people need most, like food and medicines. But that just meant that the shops and pharmacies ran out of those things.

But it’s not true that a country can never get sustained by printing money. This can happen, if it doesn’t have enough money to start with. If there’s a shortage of money, businesses can’t sell enough, or pay all their workers. People can’t even borrow money from banks, because they don’t have enough either. In  this case, printing more money lets people spend more, which lets companies produce more, so there are more things to buy as well as more money to buy them with.

In 2008, there was the Global financial crisis, when banks lost a lot of money, and couldn’t let their customers have it. Luckily, most countries have central banks, which help to run the other banks, and they printed extra money to get their economies moving again. 

Too little money makes prices fall, which is bad. But printing more money, when there isn’t more production, makes prices rise. 

The central banks, with regard to printing of notes, take decisions based on so many complex factors relating to financial stability, inflation and stability of exchange rates . 

When government is going for direct monetisation of its deficit ,it will  asks RBI   to print new currency in return for new bonds that the government gives to the RBI. 

In lieu of printing this cash, which is a liability for the RBI. it gets government bonds, which are an asset for the RBI since such bonds carry the government’s promise to pay back the designated sum at a specified date. 

In the UK in the month of April 2020, the Bank of England extended direct monetization facility to the UK government even though Andrew Bailey, Governor of the Bank of England, opposed the move till the last moment. 

Until 1997, the RBI “automatically” monetized the government’s deficit. However, direct monetization of government deficit has its downsides. In 1994, Manmohan Singh (former RBI Governor and then Finance Minister) and C Rangarajan, then RBI Governor, decided to end this facility by 1997. 

Still an escape clause in the 2017 amendment of the FRBM (Fiscal Responsibility and Budget Management Act) act permits such direct monetisation under special circumstances.

According to C. Rangarajan ,“Monetisation of the deficit is inevitable. Such a large increase in expenditure cannot be managed without monetisation of government debt,”. 

This is different from the “indirect” monetising that RBI does when it conducts the so-called Open Market Operations (OMOs) and/ or purchases bonds in the secondary market.

Direct monetisation provides an opportunity for the government to boost overall demand at the time when private demand has fallen, but it may fuel inflation. 

While no ideal level of debt is set in stone ,most economists believe developing economies like India should not have debt higher than 80%-90% of the GDP. At present, it is around 70% of GDP in India.

Nobel laureate Abhijit Banerjee  suggested that printing money is an ideal way to support expenditure during the ongoing second wave of the pandemic. While Banerjee said that the additional cash printing will help in direct cash transfers to poorer sections of the society. 

When the government is required to increase its expenditure beyond budgetary allocation in view of a crisis situation, the central bank has the option of printing more money to support the additional liquidity requirement. 

Additional money printing is a strategy that many developed nations adapt to fight a recession. The US has done it during the Coronavirus pandemic to make credit easily available at lower interest rates. But it has also expressed the need to gradually taper the additional stimulus in view of upside risk to inflation. 

Former RBI governor D Subbarao recently said that India’s central bank can directly print money and finance additional spending by the government. However, Subbarao added that it should only be done if there is absolutely no alternative. 

According to Subbarao when the RBI buys bonds under its open market operations (OMOs) or buys dollars under its forex operations, it is printing money to pay for those purchases, and that money indirectly goes to finance the government’s borrowing. 

“The important difference though is this when RBI is printing money as part of its liquidity operations, it is in the driver’s seat, deciding how much money to print and how to channel it into the system. 

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HEAT WAVE IN CANADA & NORTHWEST AMERICA https://www.upsconline.com/heat-wave-in-canada-northwest-america/ https://www.upsconline.com/heat-wave-in-canada-northwest-america/#respond Thu, 01 Jul 2021 07:40:00 +0000 https://www.upsconline.com/?p=2031 According to U.S. National Oceanic and Atmospheric Administration(NOAA) , world’s average annual temperature is one degree Celsius warmer than it was a century ago. The 10 warmest years on record have all occurred since 2005, and seven of the 10 have occurred just since 2014 .

Canada is widely known for its brutal winter and snows, and prior to the weekend the historical high in Canada was 45°C, set in Saskatchewan in 1937, according to Environment and Climate Change Canada.

The heat over western parts of Canada and the US has been caused by a dome of static high-pressure hot air stretching from California to the Arctic territories. Temperatures have been easing in coastal areas but there is not much respite for inland regions.  

The scorching heat stretching from the US state of Oregon to Canada’s Arctic territories has been blamed on a high-pressure ridge trapping warm air in the region.

The heatwave in the Pacific Northwest, which is more accustomed to long bouts of rain than sun, resulted from a high pressure system that wasn’t moving, said Greg Flato, a senior research scientist with Environment and Climate Change Canada based in Victoria.

Weather-wise, the current heat wave in the west is due to a “heat dome,”. It’s a large area of high pressure that extends well up into the atmosphere. So in British Columbia , even at the top of the Rocky Mountains, the temperature is some 15 to 20 degrees above normal .So, when you have this dome, this high-pressure system, it’s a lot of sinking air underneath that just warms more as it comes down towards the coast.  

On top of this, the sun is shining day after day, and creating a bubble where the jet stream can do nothing but go around it . This stops the rain from coming in or cold fronts from cooling things down. Although heat domes are nothing new, while the frequency and duration in which they are happening could be attributed to climate change.

Heat waves begin when high pressure in the atmosphere moves in and pushes warm air toward the ground. That air warms up further as it is compressed, and we begin to feel a lot hotter.

The high-pressure system pressing down on the ground expands vertically, forcing other weather systems to change course. It even minimizes wind and cloud cover, making the air more stifling. This is also why a heat wave parks itself over an area for several days or longer. 

As the ground warms, it loses moisture, which makes it easier to heat even more. In the drought-ridden West, there is plenty of heat for the high-pressure system to trap.

As that trapped heat continues to warm, the system acts like a lid on a pot ,  earning the name “heat dome.” In the Pacific Northwest, the heat and the drought are working in concert, exacerbating the problem and causing temperature records to fall day after day.

The heat has resulted from a wide and deep mass of high-pressure air that, because of a wavy jet stream, parked itself over much of the region. Such an enormous high-pressure zone acts like a lid on a pot, trapping heat so that it accumulates. And with the West suffering through drought, there’s been plenty of heat to trap. This happens when strong, high-pressure atmospheric conditions combine with influences from La Nina , creating vast areas of sweltering heat that gets trapped under the high-pressure “dome.” 

In Seattle, Portland and other areas west of the Cascades, hot air blowing from the east was further warmed as it descended the mountains, raising temperatures even more.

Climate is naturally variable, so periods of high heat are to be expected. But in this episode scientists see the fingerprints of climate change, brought on by human-caused emissions of carbon dioxide and other greenhouse gases.

A strong change (or gradient) in ocean temperatures from west to east in the tropical Pacific Ocean during the preceding winter triggers the heat dome .  

The western Pacific’s temperatures have risen over the past few decades as compared to the eastern Pacific, creating a strong temperature gradient, or pressure differences that drive wind, across the entire ocean in winter. In a process known as convection, the gradient causes more warm air, heated by the ocean surface, to rise over the western Pacific, and decreases convection over the central and eastern Pacific .

As prevailing winds move the hot air east, the northern shifts of the jet stream trap the air and move it toward land, where it sinks, resulting in heat waves.

The extreme heat wave seen in British Columbia is not just tied to that region. It’s still been very hot and humid in Ontario, Quebec and Atlantic Canada 

The heatwave has scorched crops across the Prairies, where farmers grow much of the world’s wheat and canola, driven up natural gas prices in the fourth-largest global producer, and increased the risks of wildfires. 

A flood warning is now effect for the Chilcotin region in British Columbia’s interior due to an unprecedented amount of snowmelt triggered by extremely hot temperatures. 

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