Exercise 2. Say whether the following statements are true or false. Correct false statements

1. The accelerated introduction of more modern aircraft represents a major opportunity to reduce emissions per passenger kilometre flown.

2. Another possible reduction of the climate-change impact is the limitation of cruise altitude of aircraft.

3. The total number of passenger kilometres is falling at a faster rate than manufacturers can reduce emissions, and at present there is no readily available alternative to burning kerosene.

4. The growth in the aviation sector is unlikely to continue to generate an increasing volume of greenhouse gas emissions.

5. Some scientists and companies such as GE Aviation and Virgin Fuels are researching biofuel technology for use in jet aircraft.

Exercise 3. Paraphrase the following sentences.

1. Modern jet aircraft are significantly more fuel efficient (and thus emit less CO2 in particular) than 30 years ago.

2.The total number of passenger kilometres is growing at a faster rate than manufacturers can reduce emissions, and at present there is no readily available alternative to burning kerosene.

3. The growth in the aviation sector is likely to continue to generate an increasing volume of greenhouse gas emissions.

4. Manufacturers have forecast and are committed to achieving reductions in both CO2 and NOx emissions with each new generation of design of aircraft and engine.

5. However some scientists and companies such as GE Aviation and Virgin Fuels are researching biofuel technology for use in jet aircraft.

Exercise 4. Finish the sentences.

1. The accelerated introduction of more modern aircraft represents a major opportunity to reduce...

2. Another possible reduction of the climate-change impact is the limitation of...

3. Some scientists and companies such as GE Aviation and Virgin Fuels are researching biofuel technology for use in...

4. There is no readily available alternative to burning...

5. The growth in the aviation sector is likely to continue to generate an increasing volume of...

Exercise 5. Make up your own sentences using the following terms:

reductions in emissions, optimisation of airline timetables, route networks and flight frequencies, biofuel, organic oil, greenhouse gas emission, deforestation.

Text 3.