important to the global economy but its also seen as one of the most polluting. it s responsible for about 2.5% of the carbon emissions that are warming the planet. that and noise pollution is why the dutch government is trying to cut the number of flights at amsterdam s schiphol airport by more than 10%. and it s defending its plans in court today. but of course airlines aren t happy. the likes of klm, delta and easyjet are behind the legal action. they ve invested heavily in what is the third busiest airport in the world for international passengers. our correspondent anna holligan is outside the dutch parliament. this is quite an interesting case being watched around the world, because lots of governments are in a similar situation. tell us what are the arguments both sides are laying out in court today. this could be seen as precedent setting around the world. seen as precedent-setting around the world. , seen as precedent-setting around the world. 3 , seen as precedent
aviation here. by 2030, carbon emissions from aviation must be equal to 2005 levels. i m reading from a government print out. they have to be halved from 20 50 compared to those levels, and by 27 d, emissions must be reduced to zero. at the moment, there is no clear plan of action in terms of biofuels and all that kind of thing, so this really is being seen as something as a test case. what is decided he could really influence decisions around the world, and we are expecting a decision from the court in harlem in two weeks time. so, watch this space. two weeks time for that verdict. thank you very much indeed. china s top anti graft watchdog has started an investigation of zhao weiguo the former chairman of chipmaker tsinghua unigroup.