As a new migrant caravan is reportedly swelling in ranks and moving up through Mexico, adding to the already capacity number of asylum seekers south of the U.S. border in cities like Ciudad Juárez, former vice president Al Gore says he thinks he knows what partly motivates mass human movement out of Central America.

Surprise! It’s climate change.

Former Vice President Al Gore appeared on The Circus Sunday night where he reiteratedhis belief that climate change is responsible for the migrant caravans from Central America heading to the U.S. To prove his point, Gore showed an area that spans several countries known as the Dry Corridor, part of which is so dry it’s gone an entire year without a harvest. This, according to Gore, is where the journey begins for many of the migrants.

“The drought becomes unbearable so they pick up stakes and they say, ‘We can’t live here,’” Gore said. “First of all they leave their farms and go to these cities, and they run into these criminal gangs, and they say, ‘We can’t handle this.’ And they head on north.”

And if what Gore says is true, the caravans won’t be stopping anytime soon, not just from Central America to the U.S., but all over the world.

“The estimates are that in this century there could be as many as one billion climate refugees migrating across borders to other countries,” Gore said. “That’s a threat to political stability and peace.”

Gore said Republicans who publicly deny climate change is real change their tune privately.

“There are a lot of republicans who I know who understand the climate crisis,” Gore said, “but if they say they’re on my side of this, then they get a primary opponent, and so they keep quiet about it.”

Climate change is currently the designated criminal in the selling of huge government-run programs such as The Green New Deal, with the main proponent of that legislation, Democratic Rep. Alexandria Ocasio-Cortez insisting that humanity has roughly 12 years left to live before climate change devastates the Earth.

Meanwhile, the White House is apparently seeking “adversarial” climate science reviews to counter whatever data AOC and other Democrats have been using to demand climate change legislation.

Latest GWPF Newsletter: U.S. Democrats Won’t Back ‘Green New Deal’ In ‘Sham’ Vote – White House Recruits Researchers For ‘Adversarial’ Climate Science Review https://t.co/UvBDak7abE pic.twitter.com/5cK9mHDMnt

— Climate Realists (@ClimateRealists) February 27, 2019

While The Guardian reports that “most members of the migrant caravans come from Guatemala, Honduras and El Salvador – three countries devastated by violence, organised crime and systemic corruption, the roots of which can be traced back to the region’s cold war conflicts,” they also acknowledge that the migrants themselves do not mention climate change as a reason for their decision to migrate because the concept is “so abstract and long-term.”

Good thing there are people out there ready to help them understand why they’re marching hundreds of miles and facing possible death, robbery, human traffickers, drug smugglers, and inhumane and unsanitary conditions.