Using three methods of satellite observations, scientists have shown that Greenland's ice sheet is indeed losing mass.
The loss of ice is contributing about 1.7 mm per year to the sea level increase of 3 mm a year globally, according to the Eurekalert story.
The loss of mass was greatest across southwestern and northwestern Greenland.
There are recent years when there was an increase in mass in certain regions of Greenland, but that is mostly due to heavy, seasonal snowfall.
When all regions of Greenland are included, the melting and calving periods between 2002 and 2011 were very high compared to the last 5 decades.
Calving Greenland Ice Sheet
The overall trend of ice mass loss on Greenland has increased by 0.07 mm a year. according to the researchers.
This research was published by an international research group led by the GFZ German Research Centre for Geosciences in the latest issue of Earth and Planetary Science Letters, June 1st, 2012.
A particular climate geoengineering effort to reduce the amount of sunlight might not work out.....
Understanding the climate model.
A look at the model projected long-term changes in global temperatures and precipitation based on a combination of four greenhouse gas emission scenarios.
Going back 10,000 years, researchers have determined that the Greenland Ice Sheet was actually at its smallest size between three and five thousand years ago.
Observed changes in global precipitation are directly affected by human activities and cannot be explained by natural variability alone.
Better late than never. Here is the global October 2013 satellite measured temperature anomaly data