It’s no secret that oil and gas companies are on the hunt for new places to drill. But the quest for more fossil fuels could heat up in places you might not expect: our national parks. With President Donald Trump’s executive order on energy, federal agencies are now reviewing all rules that inhibit domestic energy production. And that includes regulations around drilling in national parks that, if overturned, could give oil and gas companies easier access to leases on federal lands they’ve long coveted. Weaker regulations could mean oil and gas pollution and spills in pristine national parks.