Climate scientists have warned for decades about bleaching of coral reefs, which are nurseries for commercial fisheries.
The world's fourth coral bleaching event hit at least 53 nations and local regions across the Atlantic, Pacific and Indian oceans over the past year.
It's the second global bleaching of corals in the last decade, the International Coral Reef Initiative and the U.S. National Oceanic and Atmospheric Adminstration said on Monday.
A U.N. report estimates at least 25% of global dust emissions that scatter on land and ocean come from human activities.
Negotiators released new U.N. proposals to share revenues from drugs, cosmetics, and agricultural biotechnology.
A little known international organization is in charge of mediating U.S.-Mexico water sharing during a time of drought.
Building debris may take US$647 million and 15 years to clean up. Around 800,000 tons might qualify as hazardous waste.
The head of Freedom House called the shooting 'a grim and shocking blow to the American democratic process.'
As NATO summit host, the Biden administration sought to show unity for Ukraine and deflect concern about Trump.
A U.N. report estimates at least 25% of global dust emissions that scatter on land and ocean come from human activities.
Children's deaths from malnutrition and dehydration show that critical health and social structures have collapsed.
