A GOP lawmaker said this week that the rise in sea levels around the globe was not caused by climate change — but by rocks tumbling into the world’s oceans and silt flowing from rivers to the sea.

“Every time you have that soil or rock or whatever it is that is deposited into the seas, that forces the sea levels to rise, because now you have less space in those oceans, because the bottom is moving up,” Alabama Rep. Mo Brooks said Wednesday at a Science, Space and Technology Committee meeting on climate change, Science Magazine reported.

From the rocky California coast to the White Cliffs of Dover in the UK, crumbling rocks wind up in the water, forcing sea levels to rise, he argued.

Brooks also said that erosion played a major role, explaining that silt washing into the ocean from major rivers like the Mississippi, the Amazon and the Nile contributed to sea-level rise.

Phil Duffy, president of the Woods Hole Research Center in Massachusetts and a former senior adviser to the US Global Change Research Program, took issue with Brooks’ theories.

“I’m pretty sure that on human time scales, those are minuscule effects,” he said during the meeting, where he was questioned by the panel’s members.

Brooks then added that Antarctic ice was growing, which was true a few years ago, though scientists say that does not disprove the theory of global warming because different factors affect the Arctic and Antarctic rates of melting, Science said.

“We have satellite records clearly documenting a shrinkage of the Antarctic ice sheet and an acceleration of that shrinkage,” Duffy said.

“I’m sorry, but I don’t know where you’re getting your information, but the data I have seen suggests … “ Brooks said before Duffy cut him off to answer the question.

“The National Snow and Ice Data Center and the National Aeronautics and Space Administration,” Duffy replied.

“Well, I’ve got a NASA base in my district, and apparently, they’re telling you one thing and me a different thing,” Brooks said.

“But there are plenty of studies that have come that show with respect to Antarctica that the total ice sheet, particularly that above land, is increasing, not decreasing. Now, you could make a different argument if you want to talk about Greenland or the Arctic.”