The workers were to quickly change the horses or mules whenever a stagecoach reached the station.

VOA: special.2010.04.26

Scientists say the thinning ozone layer over the South Pole makes climate change take place more quickly than in other areas of the world.

VOA: special.2009.06.03

Our genetics cannot change this quickly in order to explain the increase in incidence."

VOA: standard.2010.08.09

"Because it's happening so quickly, they haven't had time to adapt and change, if you imagine a climate changing over hundreds of thousands of years, bears and other animals would gradually move into other habitats,but because this is going to happen over decades, it will be too fast for them to adapt and look for other food sources,"

VOA: standard.2009.12.13