You may cancel any scheduled Subscription Payment by notifying us within 4 days of the next scheduled payment by contacting our Customer Service center at By contacting Afterpay to cancel any scheduled Subscription Payment, Afterpay will also cancel any future Subscription Payment you have for goods or services This causes a layer of fog to form less than a meter deep but as turbulence in the calm skies arise, it can promote thicker layers to produce. The fog formed as the night time temperature dropped, which formed a static layer of cooler air closer to the ground. This is referred to as temperature inversion. Typically, air closer to the ground is More than 200 Thursday flights have been cancelled at Istanbul's two airports because of expected snowfall, Turkey's top airlines said. Turkey's national flag carrier, Turkish Airlines, said on Wednesday that it had cancelled 185 flights at Istanbul airport on Thursday, 114 of them domestic and 71 international. The fluids used are typically complex concoctions based on propylene or ethylene glycol (similar to automotive antifreeze). Aircraft De-icing is a one or two-step process depending on the weather. Step 1: " De-ice " removes ice, frost, and snow. Step 2: " Anti-ice " protects the wings from new ice, frost, and snow. ZOa5. This blog post was updated on December 17, 2021. If you’re holding tickets to a ball game or a tennis match that gets rained out…well, that’s a a let down. But when you’ve got a pair of plane tickets to some great escape like Bali or to an urgent business meeting half way across the country and your flight gets cancelled for bad weather, the consequences are often bigger! Indeed, they can range anywhere from losing precious, irrecoverable vacation time, to having to repurchase a missed connecting flight, to scrambling to win that big deal for your company. That’s why, as we prepare for our trip, we monitor the weather forecasts with an eye toward rescheduling if necessary. But, sometimes, we just fail to see it coming. If we’re lucky, we get the bad news while we’re still at home or in our hotel room, but often we don’t get it until we’ve already trekked all the way out to the airport. And so there you are at the airport, looking out of an enormous bank of windows as it rolls on in and over all your best laid plans. But there’s no need to fall into despair! Just follow these handy tips to make the most out of your time when a flight is cancelled. Know Where You Stand When You’re Stuck When an airline cancels a flight due to bad weather — or for any other reason for that matter — it’s very important to know what you are entitled to know the way you should proceed. How an airline must make good depends upon two things the transportation laws of the country that cover your flight and the contract of carriage that you automatically make with an airline when you purchase your ticket. If your flight originates or terminates in the United States, for instance, then it’s covered by policy. And in the while the Department of Transportation allows airlines to book passengers on the next available flight that they have for free as a way of making good, it requires them to refund you for the unused transportation, even on non-refundable tickets, should you want that. The airline is also required to refund you for any baggage fees and extras, like seat assignment, that you paid. The contract of carriage may also list other things you’re entitled to such as some compensation for any necessary hotel accommodation or at least help in locating a hotel room. So while you’re on the customer service line, pull up your e-ticket on your phone and make sure you review this section before you speak with a representative. Remember, airline reps sometimes only respond to what you ask for instead of offering you what you’re entitled to. Unless specified otherwise in this contract, airlines are not required, at this time, under law to provide any other compensation such as a reimbursement for the cost of a connecting flight that you’ll miss due to the original flight cancellation. Visit – and Call – Customer Service for an Alternate Flight If you’re already at the airport, join the line at your airline’s customer service desk to get an alternate flight…but, while waiting, call the airline with your cell too! Sometimes it can be faster – and less hectic – to get through on the phone. Anyway, doing both doubles your chances of reaching a representative. If you bought a cheap airline flight from a travel agency, then you’ll want to call it first. It may be able to give you quicker service, especially since everyone on your cancelled flight will certainly not be running to it for help. Be sure to check your email as you wait in and on the line as airlines’ automated ticketing systems may offer you a replacement flight before you get a chance to speak with a representative. Hop a Ride with Your Airline’s Partner Airlines today often belong to alliances such as the Star Alliance in which they cooperate with each other in a number of ways to offer passengers a higher quality of safety and service. If you know who your airline partners are, go to their website and see if they have a seat on a suitable flight. If they do, then call them and see if they’ll give it to you as a replacement for the one that got cancelled. You can even do this while your in and on the line with your airline! Get a Line on an Interline Agreement If your airline or one of its partners does not have a suitable alternate flight, then ask if it has what’s known as an interline agreement with another carrier. This is an agreement between two or more airlines who are not necessarily partners to cooperate by, among other things, taking each other’s passengers during cancellations or other interruptions of operations. Such an agreement could have you off on your trip even in the face of the foul weather. You may also like How to Get Some Comfortable Shut-Eye at the Airport Fly with “the Other Guy”…Your Airline Might Pay for It! Is it even a thing? Well, yes! It can be done, even though it totally rubs up against our capitalistic expectations and does require a little moxie on our part. But if your airline can’t offer you a suitable alternate flight in any of the ways detailed above, then look at other airlines and see what flights they have. If you find one that you like, tell your airline and ask them to buy you the ticket. After all, they do have your money! It may take some badgering and an appeal to a supervisor, but getting yourself booked on a competitor is something that’s accepted in the business since airlines do have a responsibility to get you where you’re going. If Everything Else Fails…Get a Refund Though your flight is cancelled, it can still be difficult to accept having to dismiss your trip, especially after all the planning you’ve put into it or all that may be riding on it. But if you can’t get an alternate flight after trying some or all of the above methods, then tell your airline you want to cancel it and get a refund for your unused transportation. Airlines will often try to give you a travel voucher, but this is not a refund. While it’s perfectly OK to accept it if you agree with the terms, you are entitled to a cash refund based on well-established DOT policy. The airline must refund you via your original form of payment. One advantage of a voucher over a refund though is that you can usually use the voucher immediately while the refund may take a week or two. If you bought your tickets through a travel agent, then — unless instructed otherwise — it’s best to call the agency and let them know that you want a refund. Keep in mind that the travel agency you used does not have your money since it has already paid the airline for your tickets. Once you talk with the agency, it will apply to the airline on your behalf for your refund. A Few Other Tips Here are a few other things to keep in mind to help get you through your flight cancellation If there’s a chance you’ll have to travel in bad weather, you might want to only bring a carry-on bag if you can. It’s just easier and faster for you and the airline if you don’t have checked baggage when you have to hop an alternate flight. Be sure the airline has your updated contact information such as your cell phone and email address. And make sure that you’ve downloaded your airline’s travel app so that you can receive text alerts. Use travel applications like FlightStats or FlightAware or a flight tracking service from your travel agency to get notifications on the status of your flight, connecting flight, or other cheap flights that you may be considering as alternates. These apps also tell you about weather conditions at airports in your itinerary and even give you restaurant and other advice to help you through layovers! Consider camping out in the comfort of an airline’s lounge or club while you wait for your alternate flight. Even if you don’t have membership access, you can often buy a day pass, though it’s usually cheaper if you do so online than at the club itself. Or you may already have access through your credit card perks. If you took out travel insurance ahead of your trip, contact your insurance company to see how it can help you weather the storm. Something isn't loading properly. Please check back later. New Yorkers react to smoky skies 0154 - Source CNN Top business news 16 videos New Yorkers react to smoky skies 0154 Now playing - Source CNN Video See Apple's new $3,499 mixed reality headset 0059 Now playing - Source CNN Gun shop owner explains decision to close his business 0110 Now playing - Source CNN Target facing backlash following removal of merchandise ahead of Pride Month 0150 Now playing - Source CNN 'Jeopardy!' fans in uproar after a single letter ends nine-day winning streak 0103 Now playing - Source CNN This is how much Netflix is charging to share your password 0159 Now playing - Source CNN See Adobe's new art tool that gives images life-like effects 0040 Now playing - Source CNN See fake image of an 'explosion' near the Pentagon that caused confusion 0241 Now playing - Source CNN Reporter says Jeffrey Epstein appeared to blackmail Bill Gates with this 'veiled threat' 0345 Now playing - Source CNN See what happens when you go off-roading in a $270k Lamborghini 0221 Now playing - Source CNN World's richest man weighs which of his 5 children will take over empire 0348 Now playing - Source CNN Watch video of the extra-rugged off-road 2024 Toyota Tacoma Trailhunter 0055 Now playing - Source CNN Business Tesla shows off updates to its robot. See how it's lagging behind the competition 0103 Now playing - Source CNN Business Elon Musk 'I'll say what I want to say' even if it means losing money 0040 Now playing - Source CNN How former Google exec thinks AI could become a weapon of war 0045 Now playing - Source CNN Sen. Blumenthal opens AI hearing with a deepfake recording of his own voice 0145 Now playing - Source CNN CNN — The Federal Aviation Administration lifted a ground stop for flights bound for New York’s LaGuardia airport due to smoke but has delayed some flights on the ground. Flights into Philadelphia are also being impacted because of the wildfire smoke, the FAA says. It reported the average delay is about a half-hour. A similar delay to the one at LaGuardia is in place in Newark. “The FAA has slowed traffic to and from the New York City area airports due to reduced visibility from wildfire smoke,” the FAA told CNN in a statement. “The agency will adjust the volume of traffic to account for the rapidly changing conditions.” As of 245 ET, airlines in the US have canceled 120 flights and delayed another 1,928, according to data from tracking site FlightAware. The Federal Aviation Administration says the extreme wildfire smoke haze lingering over the Northeast US due to Canadian wildfires could delay flights through Boston, New York, Philadelphia, Baltimore, and Washington, US Secretary of Transportation Pete Buttigieg tweeted Wednesday that, “Smoke from Canada’s wildfires is affecting visibility in our airspace and leading to delays. The FAA is fully prepared to modify operations as needed.” This story has been updated from the original. More from CNN Business CNN Business Videos 7 minutes readLast Updated March 18, 2023Flight delays are a typical part of the travelling experience and most of us will encounter them at some point. Nevertheless, it can be a very stressful thing to have to go through, and many people are left confused about what to do. Are they going to be able to get where they need to go? Why is my flight delayed in the first place? How often are flights delayed, anyway?There are a lot of very common reasons why a flight may end up being delayed. Here’s a look at some of the most common ones that you will find when your flight is being your flight was delayed due to the airline's fault, you can be entitled to compensation of up to $700. Check your eligibility with our free flight delay compensation calculator. Unsafe Weather ConditionsMost of us are aware that while trying to take off and land the plane safely, poor weather may be a huge issue. There are a lot of details that need to be sorted out before determining if it’s going to be safe for a plane to a good probability you won't be able to fly safely if it's snowing, sleeting, or raining. Because the plane is flying at such a high altitude, snow or rain might turn into hail or ice, making increasing the chances that the plane might get damaged while in top of that, wind is a very dangerous issue that needs to be dealt with, as well. Any sort of wind or turbulence can be a really big problem in regards to flying a plane safely. So, if the wind levels aren’t at the level that they should be, it’s incredibly important for airlines to shut down their flights and delay until the weather is better for flight Related to weather, one big reason for flight delays is the ability to see. It can be risky for planes to take off, fly, and land if the cloud cover is too thick if there is a lot of fog. As a result, throughout the winter months, you'll notice a lot more delays owing to poor visibility. A simple snowstorm might lead a plane to crash due to the inability to Trouble When you think about the different flight delay reasons that are out there, it’s likely that you remember “mechanical trouble” as a part of that process. Whether it’s a landing wheel or the air conditioning, mechanical issues need to be sorted out before a plane is safe to take planes are extremely fragile; one component not functioning properly might produce problems in unexpected areas. This makes it difficult to determine exactly what is going on, and it may take longer than intended to effectively address the might be even additional delays due to technical concerns that are unrelated to the plane itself. Not only must the plane be repaired, but it must also be re-inspected and documentation must be submitted before it can be loaded and take off. As a result, you'll need to be delayed for a longer period of failure of an aircraft is not considered a force majeure unforeseeable circumstances that prevent someone from fulfilling a contract. Using AirAdvisor, you can get between 250 and 600 Euros in DamagePlanes have all sorts of things that bounce off of the windshield while in flight. But, there are times where the windshield is starting to see some problems that may be of concern, and that’s where delays can birds are usually the worst offenders, so pilots should keep an eye on what's going on and whether they need to take a quick glance through the glass when they arrive at their destination. If they discover a possible problem, it will cause delays for those on the on CargoMany passenger jets transport additional goods while in the air. Planes attempt to balance things out and use space properly, whether they're transporting goods or pets. As a result, cargo might be one of the causes of aircraft delays you may encounter when traveling. The plane will be delayed if the cargo is the cargo may be rerouted through another plane that has extra space, but this is restricted because of weight and balance which we will be discussing a little later in this article.Other Flights Are DelayedFind out if you are owed compensation for a disrupted flightCheck Your FlightIt should come as no surprise that one of the major reasons of flight delays is, well, other aircraft delays. This is referred to as a "knock on" effect by aviation experts. When one jet is delayed, it's very probable that other planes will be delayed as how it might go down. You'll be flying from Los Angeles to New York City. One is in Chicago, while the other is in Baltimore. Fog causes your trip to Los Angeles to be delayed. Your jet is packed with passengers who are also on a layover at O'Hare. Suddenly, that flight from O'Hare to BWI has been rescheduled as flight from O’Hare to BWI is supposed be a connection for 3 other flights, including an international flight. Now, those flights are delayed. It’s a huge domino effect, and it can make airline schedules incredibly complex and flight delays is extremely stressful for the air passengers. Being informed about what's happening is the best way to keep calm. AirAdvisor explains how you can check if your flight is delayed and what is the cause of the delay with flight delay RestrictionsPlanes are certified to carry a specific amount of weight, and exceeding that weight might result in complications while in the air. So, if a plane is overbooked or there are other weight concerns to be resolved, it's critical that the plane crew deal with them as soon as possible before taking is why there are weight restrictions in regards to the luggage and carry-ons that you can bring with you on a plane. Those weight restrictions make it easier to balance the plane, and it prevents issues like delays or forcing people to take another flight for safety Employee, and Crew StrikesWhile these aren’t as common as other reasons you may find, there are times where flight employees may go on strikes, causing delays and cancellations of flights until things are resolved. More often than not, these are limited to one airline, or even to the crew on one flight called a “wildcat strike”.In certain circumstances, the airline will do everything possible to link passengers with another airline, usually a partner that departs from the same hubs as their own. This makes it much easier to reschedule things, but it may also be a problem for airlines, who suddenly have to attempt to accommodate you on a different strikes, on the other hand, are strikes from air travel adjacent professionals. For example, if Air Traffic Control or staff at a specific airport has gone on strike, it may also cause a delay. In those instances, your rights are the difficulty is that airlines will often refer to these situations as "extraordinary circumstances." As a result, getting compensation directly from the airline might be challenging. AirAdvisor, like many of the other delay and cancellation concerns discussed in this blog, can assist you in obtaining the compensation you are entitled ConcernsIf there is the potential for bodily harm, or there is a national or international security issue, air traffic control and the flight authority in the country you’re in can cancel or delay flights. This is what the Transportation Security Administration did on September 11th, 2001, when the United States experienced a terrorist attack using you need help dealing with compensation linked to a flight delay or cancellation, AirAdvisor is here to help. We can answer any questions you may have and assist you in determining a course of action. When all is said and done, we can also ensure that you get what you proceduresEven though the world is slowly coming back to normal, there are still some procedures in place to prevent the further spread of Covid-19. With temperature checks and the need to demonstrate all the necessary documents and test results required to travel, checking-in for the flight might take longer than usual. Be sure to double-check the rules for Covid testing and vaccine certificates at the country you're flying to and contact the embassy if you need more clarification. To find out how early you should get to the airport to account for all of the Covid-19 procedures refer to this flight? You might have a right to compensation - up to $700Check Your FlightEmily Mills Even airlines must educate the passengers on their rights. Felicity Vaughan Thanks for increasing my knowledge, Will seek compensation for future travels. Victoria Howard Ah Must read for all travelers out there. Karen Cornish Much appreciate the information shared here. Elizabeth Smith Guys, always be ready to fight for your right with airadvisor as I got fair compensation only because of them. Jan Greene Airlines must follow the time deadlines and should make ample arrangements before take-off to avert passengers from the trouble. This is what I believe and this article shares much information to get paid if anytime airline is at fault. Sonia Parr I have got eur 300 from United Airline due to flight delay. I advice others too to seek compensation. Gabrielle Chapman I think we should seek compensation wherever airlines are at fault. The passengers plight not only involves money but lot of time and energy too. Diane Gibson Well said. Great information shared. Jasmine I think it’s a good piece of information. They made me well acquaint with my rights to claim from airlines. Leave your feedback _Giúp t điii_ . Tuy hơi dài, nhưng cố giúp t nhé Conditionals types 1, 2 and 3 cont 1. I don't think you are so hungry. If you were hungry you ... anything. eat 2. If you dyed my hair blue everybody ... at me. laugh 3. If I had liked the house you ... it. sbuy 4. If you leave the keys in the car someone ... it. steal 5. If I had known her address I ... it to you. give 6. If I had a map of London I ... it to you, but I haven't got one. give 7. If you type the letter this morning I ... it on my way home. post 8. If you had heated the ice it ... in few seconds. melt 9. ' Can you buy me the paper?' 'I ... it for you if you give me the money.' buy 10. If came home early from work today they ... to the theatre. go 11. I ... the dishes if I had had time to do it. wash 12. If we catch that plane we ... in time for the meeting. be 13. Even if l knew it I ... you. It's a professional secret. tell 14. If Robert had a driving lience he ... a much better job. get 15. You ... if you had tried again, I am sure. succeed 16. ... your father ... in time if he catches the 10 o'clock train? be 17. If were you I ... fruit trees all around the house. plant 18. If that burglar had got into my house I ... my head off. scream 19. If we get a little more rain, the crops much more. grow 20. If she had been in the house she ... the house. answer 21. If he had checked the gauge he ... out of petrol. run 22. The grass ... much nicer if we get a bit of rain. look 23. If you had left before breakfast you ... by now. arrive 24. I ... my coat if it had been cold, you know. bring 25. My father ... you some money if you need some. lend 26. I'm sure she ... to the dentist if her tooth hurt. go 27. I ... her the diamonds if she had said she loved me. give 28. If had had a car I ... to meet you at the station. go 29. If that boy trains more I am sure he ... a champion. become 30. She ... Mark if she had taken my advice. marry 31. The magazine ... the story if it hadn't been true. print 32. Do you know what ... if you pressed that button? happen 33. She ... arrested if she had tried to leave the country. be 34. If I had realized that it was such a long way I ... a taxi. take 35. My mother ... the dishes tomorrow morning if she has time. wash 36. I ... something to drink if I were thirsty, but I am not. have 37. If the dog had been hungry he ... the stale bread. eat 38. If she dyes her hair blond she ... much more glamorous. look 39. If you had been more careful you ... the vase. drop 40. We ... frozen in here if you opened that window. get - 12. He ... you back if you strike him. What do you expect? hit 13. We ... them to dinner more often if they were more amusing. ask 14. If your dog had bitten me I ... to the police. go 15. If you keep with the group in front, you ... the race. win 16, If you had arrived late, they ... you in. let 17. If that mountaineer slipped he ... more than a hundred feet. fall 18. You ... into trouble if you don't stop that nonsense. get 19. If you left that wasp alone it ... you, little boy. sting 20. If you had left that wasp alone it ... you, little boy. sting The air quality is plummeting in many parts of North America as the Canadian wildfires continue to burn. We find out how other cities around the world deal with the challenge of living with toxic air. A MARTÍNEZ, HOST There are some 400 wildfires burning in Canada, and hundreds of firefighters have joined the battle. President Biden has directed the National Interagency Fire Center to promptly respond to Canadian requests for additional help. Reporter Emma Jacobs has the latest from Canada.SOUNDBITE OF ARCHIVED RECORDINGIRENE NEEPOSH I'm here to provide you with another update...EMMA JACOBS Over the last several days, Chief Irene Neeposh of the Waswanipi First Nation has been posting regular updates on Facebook in English and in Cree.SOUNDBITE OF ARCHIVED RECORDINGNEEPOSH ...On the evacuations. We've completed level 2A and 2B, meaning the people with medical conditions have been evacuated and also the children, elders and pregnant She's speaking to residents who remain in the community, as well as those evacuated or on the road to Quebec City, 300 miles to the south.SOUNDBITE OF ARCHIVED RECORDINGNEEPOSH The ones that are - still remain in Waswanipi, I need to ask you to reduce the use of gas, for if in the case we do need to evacuate, you'll have to work with what you've The fires have led to the full or partial evacuation of several small communities in the north of Quebec. Most of the smoke affecting the East Coast has been coming from this region, but fires are still active across a swath of Canada from west to east. There are over 400 active fires across the country. In Quebec, cars were backed up on the road from Chibougamau, which ordered all 7,500 residents to evacuate earlier this week.SOUNDBITE OF ARCHIVED RECORDINGMANON CYR Speaking French.JACOBS Chibougamau's mayor, Manon Cyr, said she knows it's difficult for people to remain patient, but they should expect to remain for several days.SOUNDBITE OF ARCHIVED RECORDINGFRANCOIS LEGAULT Speaking French.JACOBS Quebec's premier, Francois Legault, said the roughly 13,000 total evacuees shouldn't expect to go home before significant rain arrives to aid firefighters on Monday night. That's despite the addition of hundreds of firefighters who began arriving yesterday from France and the United States. With over 100 wildfires burning in Quebec alone, they will assist fire crews there and members of the Canadian military already on the NPR News, I'm Emma Jacobs in Thick smoke from those intense wildfires in Canada continues to drift across much of the United States, blanketing many cities with a toxic haze. That's triggered days of air quality warnings in New York, Washington and other cities. Schools across the east have been canceling outdoor activities. Vulnerable people have been advised to stay indoors. Flights have been grounded in some places due to poor visibility. And also, a number of Broadway shows and sporting events have been KHALID, HOST Yeah. That's right. Margaret Cirino from New York City says the streets have been unusually empty, and the journey to work lately has been, quote, "wild."MARGARET CIRINO, BYLINE The sky was bright orange yesterday, and everyone on the subway was, like, masking Kristi Balazy in Falls Church, Va., says she hasn't been going outside BALAZY The haze has been really ominous in how it looks outside, and it's been hard to breathe when This is unusual in this part of the country but very familiar to many folks in other parts of the world. For millions, toxic air quality is a daily reality. Some cities have learned to combat pollution, while others are learning to live with it. First, we hear from NPR's Eyder Peralta in Mexico City, then Anthony Kuhn in Seoul and reporter Shalu Yadav in New PERALTA, BYLINE Mexico City was once known as the most polluted city in the world. The air quality here is still bad. Today, the AQI reached 123, which is unhealthy for people with respiratory problems. And you feel it. Your eyes get watery, your throat scratchy, and the sky looks hazy. But in the '90s and early 2000s, air quality would routinely hit extremely bad levels, with AQI in the 200s. So how did it get better? Essentially, the government got tough on pollution with a complex system of cars are allowed limited time on the road, and as soon as the air quality gets bad, either too high a concentration of ozone or particulate matter, the government orders even newer, more efficient cars off the streets. They order factories to reduce their output. Food vendors are prohibited from using charcoal, and roadwork stops. If the air quality doesn't improve, the countermeasures get tougher. It can mean residents can't drive to work or school, for example, so they have to walk, bike or take public transportation. If it gets bad enough, government offices are shut this program has made a huge difference. In the '90s, Mexico City faced terrible air every month. Mexicans used to joke the air was so bad so often that birds would die mid-flight. Currently, really bad days are rare. We only have a handful of environmental contingencies each KUHN, BYLINE I'm Anthony in Seoul, where my air quality app is telling me the air quality right now is 70, which is moderate, not terrible. I used to report from Beijing, where, until recent years, air pollution was often off the charts. I used to live in an old neighborhood and burn coal in stoves to heat my home. That was before we had apps and air quality monitors, and many people around me had difficulty telling the difference between weather and pollution, fog and smog. Sure, it was unhealthy, but I saw it as part of the story I was covering and recent years, Beijing's air has improved as the government has moved factories out of the city center and phased out coal stoves. When I moved to Seoul 4 1/2 years ago, I thought I was leaving this smog behind. But I was wrong. It followed of South Korea's air pollution blows over from China. A lot of it is homemade. Yoon Suk Yeol, who took over as South Korea's president last year, has said that by the end of his five-year term, he'll get air quality up to the level of London or Paris. So far this year, though, we've had plenty of bad air days of air quality of 100 or worse. Not much I can do on those except stay indoors, crank up the air purifiers and wait for a stiff northwest wind to blow the smog YADAV This is Shalu in New Delhi, opening my curtains to see what it looks like outside. The sun is out. The sky is looking blue. But there's also a fair bit of dust flying around as morning traffic builds up here. The AQI app on my phone tells me that the air outside today is unhealthy for sensitive groups. The AQI level is 117, which is, frankly, not alarming enough for Delhiites to be worried. And that's because we have it so much worse in winters, when the AQI level sometimes goes beyond it's that time of the year, I often don't need the app to tell me how grim it is outside. It's so bad that my eyes burn as soon as I wake up. I can taste the pollutants in my mouth, and the lungs feel like an overworked machine that needs a break. In fact, some studies suggest that breathing in the Delhi air is as dangerous as smoking about two dozen cigarettes a day. Emissions from factories, vehicles and burning of stubble by farmers - all these factors come together to make Delhi's air toxic. And the government's efforts to relieve the problem, restricting building construction and traffic to try and mitigate the pollution, isn't really That was Eyder Peralta in Mexico City, Anthony Kuhn in Seoul, Shalu Yadav in New Delhi.SOUNDBITE OF MUSIC Copyright © 2023 NPR. All rights reserved. Visit our website terms of use and permissions pages at for further information. NPR transcripts are created on a rush deadline by an NPR contractor. This text may not be in its final form and may be updated or revised in the future. Accuracy and availability may vary. The authoritative record of NPR’s programming is the audio record. For landing aircraft, the Instrument Approach Procedures available will dictate the required ceiling height of clouds above ground and visibility horizontal. The most common approach type for airlines is an Instrument Landing System ILS. ILS Category I requires a ceiling of at least 200 feet and visibility of at least 1800 feet. With special equipment on the ground and in the plane plus specially trained crews, this can be improved to Category II at 100/1200, Category IIIA at 50/700, or Category IIIB at 50/300. "Fog" is defined as a cloud at ground level, though, so these requirements still wouldn't be met. ILS Category IIIC theoretically allows landing with 0/0, but the standard has never been implemented and will probably be rescinded. If the weather doesn't meet the minima for any approach procedure, arriving aircraft cannot legally land and must divert elsewhere. If such conditions are forecast for when they plan to arrive, there is also likely to be a ground delay program that prevents them from even taking off. For departing aircraft, airlines are not allowed to take off from an airport where they cannot legally land in the event a problem forces them to return. Private pilots are allowed to do so, but few will unless they know the fog is localized, which is common in coastal areas.

the flight may be cancelled if the fog get thick