Current Events

  • 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.
  • Massive Tornado Outbreak on Tornado Alley
    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Io...Read more

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    Massive Tornado Outbreak on Tornado Alley

    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Iowa, Illinois and Missouri. On May 20th, a massive tornado struck Moore, Oklahoma, devastating communities - destroying over 100 homes and hitting two elementary schools and a hospital - with many casualties and deaths. Our thoughts are with our friends and colleagues suffering from these storms. For more on the May 20th storms, see the NOAA Storm Prediction Center Storm Report.
  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.

    Image Courtesy of Brigitte Baeuerle

From: Brigitte Baeuerle
Arica, October 28, 2008

Close encounter with a sea lion

Hola again,

On Sunday afternoon we took a stroll through town and ended up near the local harbor. Barking dogs, strange noises and a significant stench of old fish lead us to a group of humongous sea lions sunbathing on the rocks. Sea lions are commonly found along the South American coast and they are impressively large, ranging from 150 kg (330 pounds) to over 1000 kg (2200 pounds). As you can see in the picture, they have tiny external ears, relatively coarse hair and their fur is brown without any obvious markings.

Sea lions are quite social and form large herds during the breeding season. The big males maintain harems of females, which they defend aggressively against other males by showing their teeth, raising their upper bodies and making fierce noises.

Sea lions feed on different ocean creatures, including fish, cephalopods such as octopus and squid, and various crustaceans including crabs, lobsters, shrimp, and krill. As a result, they often get into trouble with local fishermen who claim that sea lions damage their nets or follow their trawl boats to steal fish. Some fishermen shoot them despite regulations that prohibit the killing of these marine giants.

Brigitte

Postcards from the Field: Climate Science from the Southeast Pacific

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