Currents Archive

Climate and extreme weather: drought in Colorado June 22, 2015 | When a deadly heat wave lingers for an especially long time; when a hurricane makes landfall with particular ferocity; or when droughts, winter storms or cold snaps break records, the public is increasingly interested in knowing if human-induced climate change played a role. Attributing individual extreme weather events to a warming climate is difficult work. Even so, scientists have been making an effort in recent years to determine when a connection can be detected.
Impacts of atmospheric waves: Photo of EISCAT Svalbard incoherent scatter radar February 24, 2015 | Earth’s weather extends into higher regions of the atmosphere than the one we inhabit. But the influence of those regions has been challenging to chart until recently. Researchers at NCAR and elsewhere are using a range of observing and modeling tools to discern previously unmapped links between weather events in various layers of the atmosphere, with implications for aviation, GPS, and other technology society relies on.
Snowfall measurement: cars buried under lots of snow Matt Kelsch • January 28, 2014 | As this week’s blizzard rumbled toward the U.S. Northeast, many media outlets posted the top-10 snow events for major cities. An unusual number of snowfalls in those top 10 lists have been within the last 20 years, even in cities that have records going back to the 1800s. Why is that? Could it be climate change? Are other factors involved?