The comments come after the administration ended a policy that allowed parks to ban the sale of plastic bottled water in an effort to curb pollution.
The change means national parks will no longer be allowed to ban plastic bottled water, after Trump administration officials ended a six-year-old policy put in place to curb pollution.
He said parks would continue to encourage people to use free bottle filling stations, “as appropriate”.
Some of the national parks that had made the change included seaside areas, such as Cape Hatteras national seashore in North Carolina and Biscayne national park outside of Miami, Florida.
National parks fall under the Department of Interior’s umbrella, an agency now headed by the Trump appointee Ryan Zinke.
The Department of the Interior is “reviewing” rules that govern oil and gas drilling in national parks, such as inside Florida’s Everglades.
In June, Zinke defended a proposed $400m cut to national parks in Trump’s budget, a slash that would have required staff cuts at 90% of the country’s parks. »