A canyon between current efforts and necessary action means global temperatures are on track to rise far beyond Paris Agreement goals.
A new federal report says the effects of human-caused climate change are worsening in every region of the United States, but the technology to address it exists.
New dates from cave art pigment add to evidence that Indigenous Puerto Ricans inhabited the island for millennia.
Climate change has created increasingly volatile weather and a drier atmosphere, making it harder for rivers to recuperate after a drought.
For the first time, scientists have linked high-density animal operations in the U.S. Midwest to rising air pollution from ammonia, suggesting need for increased regulation from the EPA.