When chemists design new chemical reactions, one useful piece of information involves the reaction's transition state—the ...

Gang violence in Haiti has continued to further deteriorate the country's security and the crisis is reaching "a point of no ...

With over $38 million in cap space, the 49ers need to lock up quarterback Brock Purdy on a new deal as well. Purdy's contract ...

Calls for more aid, support for police amid surge in violence in the Caribbean nation since the end of last year.

These points of no return are specific moments when the planet has warmed so much that certain effects become irreversible.

These points of no return are specific moments when the planet has warmed so much that certain effects become irreversible. Scientists assessed the risk of “tipping” in 16 different parts of ...

Before the UN Security Council, Maria Isabel Salvador called for urgent international intervention to prevent a humanitarian ...