Climate change will trigger harsher and more frequent heat waves in the next 30 years regardless of the amount of Earth-warming carbon dioxide we emit.
Six people appeared in US federal courts on Wednesday in connection with what American officials are calling one of the biggest international penny stock frauds ever investigated.
Lawyers for US Airways and American Airlines voiced confidence Wednesday that they can defeat the US suit to prevent their merger, but allowed that a negotiated deal was also possible.
US Army private Bradley Manning apologized on Wednesday for leaking secret intelligence files to WikiLeaks and admitted for the first time that he had harmed his country and others.
Mining giant Rio Tinto on Thursday said it will lay off up to 1,700 staff at its huge Oyu Tolgoi copper mine in Mongolia after a more than US$5 billion expansion was halted.
Brazil warned US Secretary of State John Kerry on Tuesday that failure to resolve the row over Washington's electronic spying could sow mistrust between the two countries.
Having turned print media upside down, the Internet now is disrupting television, forcing broadcasters to adapt to tablets and video-on-demand to hold onto views and advertisers.
Two Kazakhstan teenagers who went to the same college with accused Boston Marathon bomber Dzhokhar Tsarnaev pleaded not guilty Tuesday to charges of impeding investigators pursuing the perpetrators of the deadly finish-line attack.
The US Justice Department and several states sued Tuesday to block the $11 billion merger between American Airlines and US Airways, saying it would reduce competition and push up fares.
US Secretary of State John Kerry has urged Palestinians "not to react adversely" to Israel's announcement of new settlement building, stressing the need to return to the negotiating table.
Brazil has filed a lawsuit against Samsung alleging poor working conditions at a factory in the Amazon and is demanding more than $100 million in damages.
Facebook has agreed to acquire Mobile Technologies, a firm specializing in voice translation software, the two companies said Monday, without providing financial details of the transaction.