For someone who gets violently seasick, Boyan Slat spends a lot of time thinking about the ocean. The Dutch inventor has designed the world’s first ocean plastic cleanup system but admits he won ...

WASHINGTON – President Donald Trump has recently advocated for a "steel slat" barrier along the U.S.-Mexico border after earlier pushing for a concrete wall to stop the flow of migrants.

"It's like a vacuum cleaner for the river," Slat said. The Ocean Cleanup is on a mission to collect 90% of floating plastic pollution, including cleaning up the Great Pacific garbage patch ...

Trump's "great wall" was a big concrete symbol of that. Except that now it isn't even concrete. In recent weeks, he has been saying it will be made of "beautiful" steel slats. The way Trump has ...

Building a border wall between the U.S. and Mexico has been intertwined with President Trump's political identity since 2015. The wall was a signature campaign promise for Mr. Trump, a slogan and ...

WASHINGTON (AP) - The “big beautiful wall” has now become “steel slats.” President Donald Trump is tweaking the words he uses to describe the barrier he’s hoping to build along the U.S ...