Climate Science

Climate Science
  • ray_johnson.jpg Climate Science: Indicators of Human Fingerprint on Climate Change

    Two central questions in Climate Science are: is our planet warming, and, if so, are human activities primarily responsible? Ray Johnson looks to the 2007 Report from the Intergovernmental Panel on Climate Change for answers.

    April 3, 2011 1 Photo

  • ray_johnson.jpg Fossil fuel dependence affecting climate change

    According to NOAA scientists temperatures last year were 1.34 degrees warmer than the global surface temperature from 1951 to 1980, says columnist Ray Johnson.

    February 6, 2011 4 Photos

  • ray_johnson.jpg Black Carbon: Part 2 — Changing Glaciers in Asia

    Reducing black carbon will give world leaders time to reduce the emission of carbon dioxide, the primary greenhouse gas of concern, columnist Ray Johnson points out.

    January 2, 2011 5 Photos

  • Black Carbon 1 Black Carbon: Impact on Climate Change and Human Health

    Black carbon or soot is a part of a larger type of emissions, both natural and manmade, called aerosols. These aerosols are very small particles that are suspended in our atmosphere. They can originate from natural sources such as salt spray formed during ocean wave processes, dust formed from the grinding and erosion of land surfaces, forest fires, and volcanic eruptions for example.

    December 5, 2010 3 Photos

  • ray_johnson.jpg Carbon dioxide: the 800-pound gorilla that we have to talk about

    Carbon dioxide is a greenhouse gas that has a long residence time in the thin gaseous envelope that surrounds our planet, columnist Ray Johnson says.

    November 7, 2010 3 Photos

  • ray_johnson.jpg Arctic transformed at hands of climate change

    The Arctic of today is a very different place, says columnist Ray Johnson. On a visit to Beechey Island one can still see the barrel staves and opened tin cans from what is believed to be their first original campsite.

    October 3, 2010 3 Photos

  • ray_johnson.jpg Coal consumption: carbon dioxide and Earth's energy imbalance

    According to the U.S. Energy Information Administration website, in 2008 there were 599 coal-burning plants of varying sizes in the United States, points out columnist Ray Johnson.

    August 1, 2010 3 Photos

  • ray_johnson.jpg Events of 2010 fit description of Global Weirding

    The rise of global temperatures will cause all kinds of unusual weather effects such as more heavy snowstorms, frequent intense rainfalls and extreme flooding, columnist Ray Johnson.

    July 4, 2010 1 Photo

  • ray_johnson.jpg Earth's climate changes — a long story

    While still young compared with the age of the universe (about 13.7 billion years), the Earth has seen and experienced a lot of weather and climate, says columnist Ray Johnson.

    June 6, 2010 1 Photo

  • ray_johnson.jpg Antarctica: the pole apart

    We get occasional sound bites in the news or press about what appears to be happening there, but they are usually brief and leave one hoping for more, for a more clear placement and interpretation of that particular fact, columnist Ray Johnson says.

    May 2, 2010 3 Photos