Questão 761088

Read the text and answer questions 25, 26, 27, 28 and 29.

1 The practical impacts of climate change can be hard

to predict _____ the large scales of time and geography over

which changes are occurring. But more frequent jolts in midair

could be one way in which individuals will soon literally

5 feel the effects.

A new scientific study says that severe turbulence could

become two to three times more common later this century

when there is twice as much carbon dioxide in the

atmosphere.

10 ‘Our new study paints the most detailed picture yet of

how aircraft turbulence will respond to climate change,’ says

author Dr. Paul Williams. ‘Even the most seasoned frequent

fliers may be alarmed at the prospect of a 149% increase in

severe turbulence, which frequently hospitalizes air travelers

15 and flight attendants around the world.’

Climate change is expected to lead to stronger vertical

wind shears in the jet stream, at the cruising altitude for most

jet aircraft. Wind shears can become unstable and cause

turbulence.

20 Williams used supercomputers simulations that calculate

clear-air turbulence along Transatlantic routes in winter and

found all turbulence strength levels will increase in a world

with twice as much CO2. The computer models show the

average amount of light turbulence will increase by 59%,

light-to-moderate turbulence by 75%, moderate by 94%,

moderate-to-severe by 127%, and severe by 149%.

Ironically, or perhaps poetically, aviation has long been

recognized as a major contributor of greenhouse gases to the

atmosphere.

Fonte:www.forbes.com

GLOSSARY

jolt – solavanco

seasoned – experiente

wind shear – tesoura de vento

Which of the following is being used in the Passive Voice?