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Now theres a global race to get clean aviation off the ground. And some Companies Think theyre close to cracking it. Pretty soon, passengers will be flying in zero emission aircraft. But how did we get here . Archive The New Machine is called, optimistically, the flyer. Weve come a long way since the Wright Brothers first flight in 1903. That day, they lifted the world into a new dimension. Then we achieved bigger, faster planes. Great, but thats also how we ended up with all these emissions. Jet engines burn kerosene, which releases carbon dioxide, one of the main Greenhouse Gases causing climate change. The industry faces an enormous challenge to clean up its act, and that means coming up with new fuels. Lets take a look at some of the options. There are biof ....
In the original frame, we would be able to fly about 19 passengers. It looks like a lot of kit in there. How would you fit in 19 people . Yeah, so in the retrofitted configuration, it will be about a dozen people. Daniela is one of the engineers working on the engine. Actually, the fuel cells are this one. The power is created in these small layers. So you have to build up your layers to create the power to take off an aircraft. This engine could almost provide enough power to get you from london to glasgow, but not quite. If you wanted to scale it up for international flights, would you just make the same thing bigger or is it a totally different exercise . It is scalable until a certain power, but then well have to change technology. Getting this high Power Density System that will allow to have a lot of power but minimal weight to be integrated on an aircraft is really a challenge. And that probably means completely redes ....
to save the planet. and taking the battle for a cleaner climate into outer space. can the final frontier help us breathe easier down here on earth? wherever you rejoining me from around the world. once again, a big hello and a warm welcome to the show. you know, the climate emergency, it s not new. but as global leaders gather for this year s united nations climate change conference or known as cop 28, it s in dubai. we wanted to see how business and innovators are tackling the climate emergency. so we ve sent our crews and reporters around the world to find the cutting edge technology that could literally save the planet. we begin on a set of islands off the far north of scotland where theo leggett is exploring under the sea. bleak but beautiful. this is the pentland firth, the channel that runs between the north coast of scotland and the orkney islands. it s an area well known for vicious winds and ripping tides and that makes it the perfect location for developing ne ....
that runs between the north coast of scotland and the oakney islands. it s an area well known for vicious winds and ripping tides. and that makes it the perfect location for developing new forms of clean energy. this narrow strip of water experiences tremendous title forces every single day, in fact they are some of the fastest tides in the world, and that means that there a tremendous reserve of energy if you can tap into it. and that s what s going on just over there, off the island of stroma. beneath the surface, are for gigantic turbines are four gigantic turbines which are generating electricity, right here. the power generated in the murky waters of the first by the power generated in the murky waters of the firth by these vast turbines is already being sold to the national grid. the past five years has been spent testing the technology, and the company behind them says it s ready for a major expansion. so fraser, tell me what we ve got here. we have a 150 tonne, ....
this is cnn news central. defense secretary lloyds atin, and secretary of state tony blinken is on capitol hill right now, and the goal and the mission for them today is to make the case to lawmakers for president biden s $106 billion ask for an aid package that he wants in order to support both ukraine and israel, two nations at war, two allies of the united states. but what has happened is protests. blinken interrupted multiple times by people protesting, angry over israel s action in ga gaza. cease-fire now! cease-fire now! cease-fire now. sasha bertrand is tracking hearing for us and joining us again, and they have essentially been able to make the opening statements and to the questions from the senators, and what is the case they are making for the aid package? well, kate, one of the big themes that we are hearing from secretary blinken and acetin is that the wars that ukraine and israel are fighting is inextricably linked and you can t divorce the two ....