By 2050, 7 out of 10 people will live in megacities, offering the benefits of concentrated living but also some of the biggest public-works challenges in human history.
The Nuclear Non-Proliferation Treaty conference opens at the United Nations on Monday. Reducing nuclear weapons is a key issue for President Obama, but there are many challenges.
The Hong Kong-based team rebutted skepticism over their claims of finding Noah's Ark in Turkey, though they said further research is needed to prove beyond doubt that they have located the fabled biblical boat.
A group of Chinese and Turkish explorers announced this week they are '99.9 percent' sure of their discovery on Mt. Ararat. While Noah's ark found in Turkey would bolster Bible literalists, an American ark-hunter says the latest discovery could be a hoax.
The UN Atlas of Endangered Languages lists 18 languages with only one remaining speaker. With about one language disappearing every two weeks, some of these have probably already died off.
Producers of 'Countdown to Zero,' a docudrama about the dangers of nuclear weapons, hope it will boost the cause of disarmament the way 'An Inconvenient Truth' did global warming.
As world leaders convene in Washington for a summit on halting the spread of nuclear weapons, a global debate is rising on the merits – and feasibility – of total nuclear disarmament.
Hannah Rocklein’s saga – an international adoption 11 years later
International adoption has fallen sharply under tougher scrutiny caused by issues like Haiti's post-quake orphan scandal as well as stricter global regulations.
Haiti has shut down international adoptions because of suspicions of child trafficking in the post-quake chaos.
Iceland hopes to "reboot" the country after its banking bust, with leaders founding a Ministry of Ideas whose best recommendations are aired on a popular radio show each Friday morning.
How places like China, Brazil, and Israel are taking aggressive steps to encourage more start-ups – and what that means for the US.
Russian officials handpick a ‘Golden 100’ group of young people to shake-up an aging bureaucracy.
Evangelicalism sweeps through churches, leading some to say that Latin America is emerging as the new center of Christianity.
While a backlash persists in some nations, others are including Muslims in debates on national identity.
A growing number of critics urge Beijing to relax the one-child policy to counter an aging population.
The world’s leader in robotic technology is creating machines that do everything from cooking pancakes to guiding shoppers at malls.
Foreign interests buy up cheap agricultural land across Africa to grow tomorrow’s food. But will any of it benefit Africans?
A decade into the new millennium, here are six trends to watch – from Africa's possible emergence as the next breadbasket, to Russia’s strange leadership hunt, to the evangelical boom in Latin American pews.
After the first week of global warming talks in Copenhagen, disagreements between nations are still evident, particularly between industrial heavyweights the US and China.