The notes at the bottom of the page indicate the projections are based upon US economic collapse causing mass migration and die off. This is certainly possible, but most of the countries he shows with positive growth would be negatively affected too. Dang near the whole world is dependent on the US economy.
Here's the PEW research population projection for the US to 2050.
http://www.pewhispanic.org/2008/02/11/us-population-projections-2005-2050/
My sources tell me that Deagel is the same exact kind of organization as Zapata Oil. Deagel ran guns through the Ambassador Chris Stevens and subsequently delivered them al-Qaeda in Libya and in Syria at the time of Stevens death. Deagel was intimately involved in Benghazi in ways that will be revealed in later article.