The International Court of Justice has ruled that nations are legally obligated to respond to climate change. The case was brought by a small island nation that faces an existential threat.

When Congress approved a Trump administration plan to take back $9 billion in funds for public media and foreign aid, just one program was spared: the U.S.'s HIV/AIDS initiative, or PEPFAR.

President Volodymyr Zelenskyy says he will heed protesters angry about his new anti-corruption policy. Joanna Kakissis is a foreign correspondent based in Kyiv, Ukraine, where she reports poignant ...

Why are some songbirds so brightly colored? A new study finds that a hidden layer of black and white feathers help their colors pop.

NPR's Mary Louise Kelly talks with mycologist Aishwarya Veerabahu about the rapid spread of golden oyster mushrooms across North America. It's the subject of a new study authored by Veerabahu.