After 72 hours of marathon negotiations in Geneva, representatives from 140 nations signed the landmark accord, pledging unprecedented cuts to carbon emissions by 2035.
World
Negotiators from both sides left the table without a framework agreement, raising fears of a prolonged standoff.
Business
Venture capital investment hit a five-year low in Q1, with late-stage deals virtually disappearing from the market.
Science
A team in South Korea sustained plasma for a record 48 seconds, marking a major step toward commercial fusion power.