I Blame Global Warming for Illegal Mexican Immigration

The National Parks Services of both the United States and Canada are in the process of organizing migration corridors in response to climate change, which makes perfect sense. As localized climates change by seemingly small magnitudes - as small as fractions of a degree - the geographic ranges of flowers, trees, animals and even rivers and lakes will change with them. So migration corridors have been set up for bighorn sheep herds, porcupine caribou herds, wild bison, all sorts of raptors, etc. etc.

In fact, it only takes one degree to drastically affect an area's biota. Colder species move out, warmer species move in. Currents in rivers where the water is warmer or cooler by as little as one or two degrees make for entirely separate, and seemingly incompatible, ecosystems living next to each other.

It makes sense, then, that National Parks are cooperating across borders to ensure the safe travel of animals from one location to a settlement in another. Could the current American emphasis on amnesty be another one of these cooperative programs?

We spent a lot of time on the important and sensitive issue of migration. [...] I say important because a good migration law will help both economies and will help the security of both countries.

-- Pres. Bush, March 14, 2007, in Merida, Mexico.

Of course! The U.S. Government is only trying to ensure the survival of a threatened herd: the Mexican Wage Laborer. Through cooperation with the Mexican Government and local law enforcement, the U.S. has managed to establish a safe and inviting refuge for this threatened population as it flees rising temperatures in the South.