Experts say a "snow drought" in Northern California's Sierra Nevada helped set the stage for Tuesday's deadly avalanche.
A worldwide drought has devastated communities across the globe, but it also has fascinated millions as historic artifacts have come to the surface, igniting memories from decades to centuries before.
Under normal weather conditions, the dinosaur tracks found in the riverbed are under the water and filled with sediment.
A mysterious structure known as the "Spanish Stonehenge" has emerged from the receding waters of a reservoir near Madrid.
More human skeletal remains were discovered at Lake Mead's Swim Beach area, officials said.
Davey Tree Expert Company Research and Development Vice President Dr. Daniel Herms joined ABC7 to discuss how climate change can impact trees ahead of Arbor Day.