[T. P. Pole]

Carbon dioxide is a main greenhouse gas and is suspected of playing a role in rising global temperatures. If the northern forests are greening, they may already be absorbing carbon -- a process that can impact global temperature changes.

So let me see if I understand this. There is more carbon dioxide in the air, so the planet warms. The planet warming causing more forests growth in more places. The extra forest growth absorbs carbon.

They forgot the next few steps. The extra forest absorbs the extra carbon. Because there is less carbon dioxide in the air, the planet cools. Self regulating.

Hmmm, tell me about global warming again...

[T. P. Pole]

a process that can impact global temperature changes

Oh, yes, notice how they don't say the the impact is a positive one. Or at least one opposite of the scare-mongering one. Maybe in a few years we can talk about the coming ice age once again.

[steve in DC]

If Carbon Dioxide is the culprit, I would sooner regulate carbonated beverages off of the market (except beer, of course), than try to regulate the use of fuels.

[GEC]

The researchers used a temperature data set developed from the Global Historical Climate Network. Dr. James Hansen, of NASA's Goddard Institute for Space Studies in New York, developed this data set and said, "The data were compiled from several thousand meteorological stations in the United States and around the world. The stations also include many rural sites where the data are collected by cooperative private observers."

There is no global warming.

There is a lot more concrete than there used to be around these meteorological stations.

20 year records from these stations shows slight "warming"

Satellite temperature readings which do not have this bias due to concrete show no change whatsoever in the last 20 years.

The truth can be found here:

OISM