John Nielsen covers environmental issues for NPR. His reports air regularly on NPR's award-winning news magazines, All Things Considered, Morning Edition and Weekend Edition. He also prepares documentaries for the NPR/National Geographic Radio Expeditions series, which is heard regularly on Morning Edition. Nielsen also occasionally serves as the substitute host for several NPR News programs.
Gorilla experts with the Wildlife Conservation Society say they've made a spectacular find in the forests of the Republic of Congo: 125,000 previously undiscovered western lowland gorillas. The animals are critically endangered.
The White House is weighing what could become the biggest conservation program in U.S. history. The initiative would block vast stretches of U.S. territorial waters from fishing and oil exploration, while giving President Bush a historic "blue legacy."
The Bush administration announces on Wednesday that the polar bear will be protected as a threatened species because of the decline in Arctic sea ice from global warming. It's the first time that the Endangered Species Act has been used to protect a species threatened by the impact of climate change.