What is the cause of strong winds? Photo: wwwuppertal The wind is simply air in motion, flowing from high atmospheric pressures to low
What are the plant hardy zones and how do they relate to climate? USDA If you are involved with gardening, you probably are aware of
Will the 2010 volcanic eruption in Iceland lead to a change in global weather patterns? 2010 eruption of Eyjafjallajökull by Sverrir
Sun pillar Sun pillar at sunrise by CaptPiper The other morning, I saw a column of light above the rising sun — what was that? A
What are those beams of light that emerge from clouds?
What are the northern lights? Aurora Borealis over Iceland, by Moyan Brenn The northern lights, also called aurora borealis, are an
What is the status of the ozone hole?
Is global warming real? Image: NASA Over the past two decades, the global average surface temperature has increased noticeably. This
How long have satellites been used to study Earth’s weather? NASA image of Explorer VII satellite, 1964 The first successful
Before 1960, the idea that a reasonably accurate two-day weather forecast could be made routinely was a pipe dream – now it’s a routine More
How accurate are weather forecasts? Image: NOAA In general, weather forecasts are getting better, due to improvements in computer
Is there a relationship between sun spots and climate? 12th century sunspot drawing, from NASA. Since the invention of the telescope in
What is space weather? Space weather describes the conditions in space that affect Earth and its technological systems. Space weather
What is the dewpoint temperature? Dew on evergreens, by Michael Theberge at NOAA Think of a morning when you walked on a grass lawn or