Air polution speech

Good morning everyone. It’s an honor to have the opportunity to address such a distinguished audience. For those of you who don’t know me already, my name is Ernestas Rusilas.(2)The aim of my presentation today is to inform you on the subject of aircraft pollution. We can break this area down into the following fields: air pollution, noise polution and chemical waste. I know that time today is short so if you dont mind please save your questions till the end of my presentation. So without any further ado let me begin.
The first subject I would like to cover is air pollution produced by aircrafts. For a long time aircrafts have been considered the most polluting mode of transportation. Aircraft engines produce carbon dioxide (CO2), which comprises about 70% of the exhaust, and water vapor (H2O), which comprises about 30%. Less than 1% of the exhaust is composed of other trace compounds. Most of these pollutants are emitted during the take of and landing phase of a flight. I think a useful metric we can use is a comparison of (CO2) pollution produced by aircraft and other modes of transportation. The most recent data I found is from the European Enviroment Agency or the EEA. The data I found at first glance can make it seem that passenger aircraft pollute alot more than other modes of transportation but after closer inspection it can be seen that they made alot of assumptions. For example, the figure of 55 g of CO2 per passenger per km for an average car assumes that the car is occupied by 4 people. But is this assumption realistic? Not according to the U.S. Department of Transportation which claims that the average occupancy rate of a car in the U.S is 1.54 people per vehicle per mile....

Daugiau informacijos...

★ Klientai rekomenduoja

Šį rašto darbą rekomenduoja mūsų klientai. Ką tai reiškia?

Mūsų svetainėje pateikiama dešimtys tūkstančių skirtingų rašto darbų, kuriuos įkėlė daugybė moksleivių ir studentų su skirtingais gabumais. Būtent šis rašto darbas yra patikrintas specialistų ir rekomenduojamas kitų klientų, kurie po atsisiuntimo įvertino šį mokslo darbą teigiamai. Todėl galite būti tikri, kad šis pasirinkimas geriausias!