I think I found the first article but I had to either subscribe to the site or pay for the individual article. I have found the second one published by Physics Society. In the beginning of every article it is written, and I quote: "The following article has not undergone any scientific peer review, since that is not normal procedure for American Physical Society newsletters. The American Physical Society reaffirms the following position on climate change, adopted by its governing body, the APS Council, on November 18, 2007: 'Emissions of greenhouse gases from human activities are changing the atmosphere in ways that affect the Earth's climate.'"
Here is where I found the article.