AccuWeather's Guy Pearson was live on the AccuWeather Network on May 15 to discuss the tornado threat in the central and eastern U.S. BBC Boss Tim Davie outlined a national plan to switch off ...

We work out what the climate in a place is by looking at the average weather for about 30 years, and seeing how warm or cold, rainy and windy it is during that time. The climate is different ...

Here, we define both of these concepts, describe how they are measured and studied, and explain the connection between them .