Air monitoring continues in East Palestine after the crews released a number of toxic chemicals in what officials called a "controlled explosion" last week.
A recent federal survey found that California lost more than 36 million trees just in the last year. The large-scale die-off is alarming ecologists and policymakers.
Oil executives have mostly stopped denying climate change, but now argue that the world should not act quickly to cut fossil fuel use. In fact, last year, industry leaders slowed down climate plans.
It's been just over a week since a train carrying hazardous material derailed and caused a fiery crash in Ohio. Some residents worried about health risks have filed a federal lawsuit.
In the hit HBO show, the world has been devastated by a pandemic caused by a deadly fungus. Is that even possible? Could the next pandemic come from fungi? Turns out it's a very real question.
After a conflict and reckoning stemming from its controversial past, the Sierra Club had to look inward. Can Ben Jealous bring the organization into the future?
Activist Greta Thunberg was just 15 when she called on the world to take action on the climate crisis. Just as impressively, she has now pulled together essays by 100 scholars on what's needed now.
Orca moms spent precious resources feeding their fully grown adult male offspring. A new study finds that this may limit how many more young they produce.
There is one number that the Environmental Protection Agency relies on to decide which climate policies to pursue. So why does that number assume the lives of richer people are worth more?