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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.

Is it hot or cold on the Moon?

Temperatures on the Moon are both hotter and colder than those on Earth. In other words, the temperature range is more extreme! If you were camping on the Moon, you could not only heat up beans at local noon, you could boil water to do your dishes with! The temperature on the Moon when the Sun is overhead is just above the boiling point of water (100 degrees Celsius).

If you were to spend the night on the Moon (you might as well because it's a long trip home to Earth), you'd have to have a warm sleeping bag, because temperatures reach a low of -173 degrees Celsius.

Since the Moon and the Earth are approximately the same distance from the Sun, they receive sunlight of the same strength. So the temperature of the Earth and the Moon should be the same. It is the Moon's lack of atmosphere that creates such extreme temperatures. The Moon doesn't have an atmosphere to absorb sunlight like the Earth does, and so the surface gets very hot. The Moon's lack of atmosphere also lets heat escape during lunar nights so that it gets rather chilly on the surface!

Submitted by Sean (age 8, Wisconsin, USA)
(August 6,1997)



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