- Climate Science
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.
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.
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.
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.
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.
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.
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.
- Ice ages: They come and go - but why? It is hard to imagine today when standing on Rattlesnake Mountain near Willsboro, or Pok-O-Moonshine near Keeseville, on a lovely warm day, that ice covered this area as far as the eye could see, says columnist Ray Johnson.
Ice ages: They come and go — but why?
It is hard to imagine today when standing on Rattlesnake Mountain near Willsboro, or Pok-O-Moonshine near Keeseville, on a lovely warm day, that ice covered this area as far as the eye could see, says columnist Ray Johnson.
- The sun: driver of all weather, climate The sun is still central for scientists trying to understand how it creates and changes Earth's weather and climate over time, says columnist Ray Johnson.
- Black Carbon: Impact on Climate Change and Human Health