The most severe tornadoes can reach wind speeds of three hundred twenty kilometers an hour or more.

VOA: special.2010.05.11

This time,scientists hope to learn more about the formation, wind speed and shape of tornadoes.

VOA: special.2009.06.09

Rick Freedman, head of the Florida Association of Criminal Defense Lawyers in Miami, says budget cuts could also wind up costing the state more money.

VOA: standard.2009.05.22

We need to move on." McCoy believes the best way to get more solar,wind and tidal power on the grid is to offer renewable energy generators a government guarantee.

VOA: standard.2010.03.23

But given the fact that this current weather system is forecast to be around for a few more days, the trouble brought on by the snow and wind will be felt well into the new week.

VOA: standard.2009.12.21

"I think we're going to get the upper level winds carrying that ash down for a few more days yet until the upper wind patterns change which will probably not happen until the time frame Thursday-Saturday.

VOA: standard.2010.04.17

"The next thing is to work out how technology can be transferred from rich countries to poor countries and this will involve things like investment in renewable energy, investment in wind power and solar, investment in more efficient power stations,"

VOA: standard.2009.11.04