B12

The weather affects many aspects of our lives and researchers are constantly looking for ways to produce accurate forecasts.

RESEARCH

B13

Our ability to predict the weather depends on the information

ABLE

B14

we have. Special equipment is used to collect weather data, including amount of rainfall, temperature and wind speed and direction from all

EQUIP

B15

over the world. Computers make a comparison between these

COMPARE

B16

present-day figures and historical records, then try to predict the future on the basis of the past. Large computers also help to produce a

HISTORY

B17

Detailed picture of the likely weather using a model of the Earth in their memories.

DETAIL

B18

Even with these aids, nature is so unpredictable  that our forecast are accurate for only a few days.

PREDICT