One of Colombia's most beautiful areas, El Cocuy National Natural Park was for years too dangerous to visit. No more.
Instead of building a wall on the US-Mexico border, a landscape architect calls for restoring the Rio Grande and turning its course into an international park – an idea first proposed in the 1930s.
Within the next month, the Trump administration may move to abolish or shrink up to two dozen national monuments. Our experts explain why these sites matter and whether presidents can undo them.
A recent study finds that noise from human activities is intruding into many parks and other protected areas. Creating quiet zones and noise corridors can help reduce impacts from noise pollution.
Trump wants to scale back national monuments on federal lands in the name of boosting the economy. But this would undo decades of investments to manage our cultural and ecological resources.
The U.S. owes much of its prosperity to investment in public goods like highways, parks and schools. Trump's budget poses a threat to these goods, which have already been on the decline.
You'd hope we wouldn't flatten the pyramids to build a highway. But that's exactly what's happening to the world's natural heritage sites.
Since 1992, an area of land two-thirds the size of Australia has been converted to human use.
We know very little about Australia's most threatened plants.
American ginseng, a slow-growing native plant long used in traditional medicine, was abundant in colonial times. Now illegal harvesting and other stresses are pushing it close to extinction.
Horses need to be removed from Australia's mountains. The debate now is around ethics and their role in Australian culture.
New research shows protected areas are doing well at protecting large, iconic wildlife, but less well at helping smaller species.
The National Park Service's principal climate scientist explains why the parks are important laboratories for climate change research, and how climate change is altering the parks.
The Papahānaumokuākea Marine National Monument is huge win for preservation, but it also poses outsized management challenges for the National Park Service.
As the National Park Service turns 100 years old, two conservation scholars and former park rangers respond to critics who support privatizing national parks or putting them under state control.
60% of the world’s largest carnivores and herbivores are classified as being threatened with extinction
When we think of national parks, many people picture geysers or mountain peaks. But the park system also protects historic sites and objects that show how the U.S. has evolved into a diverse society.
A study estimates that Americans would pay $92 billion yearly in extra taxes to protect national parks. But the Trump Administration's budget calls for cuts.
The 1906 Antiquities Act gives presidents unilateral power to protect land as national monuments. The law has saved important places, but has also fueled intense conflicts over land control.
Why do Americans revere the Grand Canyon? It taught us to look at nature in a new way, and to respect iconic places by leaving them alone.