Is aircon the answer to a heating world

Introduction Do you ever feel it is too hot to sleep? With climate change gradually increasing world temperatures, people across the world are becoming increasingly affected by hot weather. In many locations, air conditioning is used to help cool down homes and workplaces, but not everyone has access to this. And it isn't just about getting a good night's sleep – extremely hot weather can be a serious health risk. Georgie and Neil discuss this and teach you some new vocabulary. This week's question Modern air conditioning was invented in 1902, but what was it originally used for? a) to protect people in hospitals b) to dry ink c) to clean air Listen to the programme to hear the answer. Vocabulary life-saving used to stop people from dying   inhabit live in   the grid the system or network that distributes electricity across different locations   vicious cycle situation where one problem leads to another problem, which then makes the first problem worse, leading to a chain of events where each cause and effect makes the original problem even worse   passive cooling making a building cooler without using a lot of power   shading blocking the sun's light and heat TRANSCRIPT Note: This is not a word-for-word transcript.  Georgie Hi Neil.   Neil Hi Georgie.   Georgie So, Neil, we've just had a really hot summer in the UK. Did you have air conditioning in your house?   Neil I didn't have air conditioning in my house. I wish I had, because it was really hot and I couldn't sleep.   Georgie No, I had one of those big fans, which didn't always do its job. But there is a really serious side to this. Heat records continue to be broken around the world. You may be feeling that summers are getting too hot. Have you been using air conditioning more to cope? If so, you're not alone. Experts are predicting that ten new air conditioning units will be installed every second for the next 30 years. Today on 6 Minute English, we're talking about this and whether air conditioning really is the best way to cope with a warming world. Georgie OK. As always, Neil, we'll start with a quiz question. So, modern air conditioning was invented in 1902, but what was it originally used for? Is it: a)    to protect people in hospitals, b)    to dry ink, or c)    to clean air? Neil Well, I have absolutely no idea, Georgie. I'm going to guess and say c) clean air. Georgie OK, Neil, we'll find out the answer at the end of the programme. Neil OK. Georgie, we've been talking about how uncomfortable the hot weather can make you feel in the summer. Is air conditioning all about comfort, though? Georgie No, it's not just about comfort. Summer heat can be a real health issue as well. It's thought that across Europe, over 30,000 people died as a result of this summer's heat. Dr Radhika Khosla, an expert in climatology, told BBC World Service's The Climate Question how important air conditioning can be: Dr Radhika Khosla Actually, air conditioning is life-saving. You know, in Singapore, when Lee Kuan Yew was asked what made civilisation possible in the tropics, he said it was air conditioning. And there are so many large parts of the world where we would not be able to inhabit if we did not have air conditioning. Neil So, Radhika is saying that air conditioning is life-saving. It literally stops people from dying. Georgie Yes, and she makes the point that there are many parts of the world that we would not be able to inhabit – that means live in – without this technology. Neil OK Georgie. So, it sounds like air conditioning has a lot of good things about it. Is it all positive, though? Georgie No. There are some serious downsides. So, one big problem with air conditioning is the amount of energy it uses. Let's hear more from Radhika talking to The Climate Question: Dr Radhika Khosla When air conditioning becomes the first, go-to solution for how we deal with the increased, prolonged and extreme heat that we're going to face and are facing, it places stresses across the system that are not able to be met. So, you know, we're going to see the grid collapse. We're going to see emissions rise. We're going to see all kinds of other impacts that actually are quite detrimental. And we reach a vicious cycle, because then you're in a world where it's getting warmer. We're using air conditioning to be able to protect ourselves. That's leading to more emissions and more energy use. That is then making the world warmer. And then we need more air conditioning. Neil We heard about the grid. The grid is the network that distributes electricity across towns, cities and countries. If people are trying to use more electricity than it can cope with, then the grid can collapse – you get power cuts, which is when you can't get any electricity. Georgie We heard that air conditioning creates emissions, which can lead the world to warm up, which means we then need more air conditioning. This makes the world even warmer and so on. And Radhika calls this a vicious cycle. A vicious cycle, or a vicious circle, is where a solution to a problem actually makes it worse, which means you have to do more and that makes the problem even worse still. Neil OK. Well, that sounds like a bit of a problem. What are the solutions? Georgie Well, Radhika says that there are some things we should try first before using air conditioning, which will still be important. Here she is again talking to The Climate Question. Dr Radhika Khosla So, one of the most important things is to do passive cooling first. Now, passive cooling is when we take steps to provide thermal comfort that are not energy intensive. Some of the most important ones are first to cut solar gain, which is through things like shading. Neil Passive cooling is where you cool your house down without using a lot of energy. Georgie Yes, heat from the sun can be blocked by shading, which could be with trees, curtains or blinds.   Neil OK Georgie. So, passive cooling and shading – that sounds really easy. Is it that simple?   Georgie No, that's not all we have to do. Radhika also talks about the importance of using sustainable energy to power the air conditioning that we still will need.   Neil OK Georgie. It's time, I think, for you to give the answer to the question you asked us.   Georgie Yes, Neil. I asked you what modern air conditioning was used for when it was first invented in 1902.   Neil And I had a wild guess. I said c) to clean air. But you know what? I'm feeling pretty confident now.   Georgie Sadly, you are incorrect. The correct answer was b) to dry ink. It was invented by Willis Carrier at a printing company in Brooklyn, New York.   Neil OK. Let's recap the vocabulary we learned in this programme, starting with life-saving, which describes something that stops people from dying.   Georgie If it's possible to inhabit somewhere, that means it's possible to live there.   Neil The grid is the system or network that distributes electricity across towns, cities, and countries.   Georgie A vicious cycle is where a solution to a problem also makes it worse, meaning the problem just keeps getting even worse as you try to fix it.   Neil Passive cooling is where you make a building cooler without using a lot of power. Georgie And shading is blocking the sun's light and heat.   Neil Once again, our six minutes are up. Test what you've learned with the worksheet on our website, bbclearningenglish.com.   Georgie Thank you for joining us. 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