The global giraffe population has dropped sharply in recent decades, prompting calls to protect the species from habitat loss, illegal hunting and trophy seekers.
The Michigan city tried to save money by drawing its supply from the Flint River, beginning in April 2014. That decision resulted in a crisis when lead contaminated the drinking water.
Native cutthroat trout, an iconic part of the mountain West, thrive in cold streams. But warmer weather has allowed invaders to move in — and it's killing off the cutthroats.
Nearly 90 percent of Kentucky's electricity is from coal — the cheap energy source that helped build its manufacturing economy. Now it's struggling to respond as more businesses want clean energy.
BP employees discovered an uncontrolled gas leak on Friday, as well as crude oil misting onto the snow. The impact is reportedly limited to a gravel area around the well.
Getty Images photographer Justin Sullivan's "before-and-after" images show how recent rains in California swelled formerly dry reservoirs and turned brown landscapes green.
In the same year that Congress voted to make bison the national mammal, Yellowstone National Park had its second largest cull ever — reducing the heard by more than 1,200 animals.
Freelance journalist Barry Yeoman says climate change and other man-made obstacles are pushing Native Americans away from traditional foods and towards processed dinners.
How will our diets shift as climate change causes sea-level rise and coastal flooding? Photographer Allie Wist attempts to answer that with pictures of an imagined "post-sea-level-rise dinner party."
The device isn't the first technology that can turn water vapor into drinkable liquid water. But its creators say it uses less power and works in drier conditions — the key is something called a MOF.