Southern California water officials are warning of potential impacts from historically low water levels at Lake Mead, a key source of water for the region.
Arnold Schwarzenegger has a message for environmentalists who despair at the approach of President Trump's administration.
Hawaii's governor signed legislation that boosts a tax imposed on hotel room and vacation rental stays in order to raise money to address climate change.
In the past week, there have been more than 50 dead and dying dolphins found along the L.A. County coast. Experts say it's due to a neurotoxin called domoic acid.
While the Earth Day movement has helped raise awareness about human-amplified climate change and has led to some regulatory actions, 5 1/2 decades later, the planet continues to warm at an alarming rate, with the impacts of that warming worsening with each passing decade.
From solar panels over canals to fashionable clothes with zero waste, watch "ourHome: Earth Month" to learn about conservation efforts near you and across the country.