See the 'Smogpocalypse' China's President Left for Climate Summit
Beijing is under one serious pollution alert.
Mysterious Boats Carrying Dead Bodies Wash Ashore
Evidence suggests the boats may hail from North Korea.
AirAsia Crew a Major Factor in Crash, Expert Says
There was a problem with the plane, but crew response was deadly.
Deadly Puzzle: ISIS's American Supporters 'Defy Easy Analysis'
After dozens of arrests, few commonalities emerge, report says.
US Says Russian Jet Violated Turkish Airspace
The incident created tension between Russia and Turkey.
How Bill Gates Could Affect the Solution to Global Warming
The business leader and philanthropist makes a big announcement during COP21.
Family of Syrian Boy Washed Up in Turkish Beach to Settle in Canada
The boy's father, Abdullah, will not be joining.
Rising Climate Fears Bring Urgency to Paris Meeting
The White House wants to be seen as taking the lead on emissions.
For Gays Under IS Rule, Isolation and Fear of a Cruel Death
Under IS rule, gays under threat of a cruel death and a stigma that leaves them no protectors
US, NATO Allies Concerned by Russia, but Need Its Help
Amid concerns over Russian action in Ukraine, Syria, US and NATO also seeking Moscow's help
Gunmen Abduct Tunisian Red Cross Worker in Yemen's Capital
Gunmen abduct Tunisian Red Cross worker in Yemen's rebel-held capital
Brazil's Economic Downturn Deepens With Further GDP Drop
Brazil's economy shrinks more than expected, worsening fears about crisis
Iraqi Forces Surround Ramadi, but It Could Be a Long Siege
Iraqi troops look to retake Ramadi from Islamic State, but it could turn into a long siege
Egypt Official Says Journalist Detained for 'False News'
Egypt official says journalist detained for cooperating with NGOs, spreading false news
Kenya Police Investigate University Drill in Which 1 Died
Kenyan police investigates drill that killed 1 at a university
After Pope's Visit, Hard Work Ahead for C. African Republic
After euphoria of pope's visit, Central African Republic faces hard task of reconciliation
Marcus Klingberg, Israeli Who Spied for Soviets, Dies
Marcus Klingberg, Israeli scientist who spied for Soviet Union, dies at 97
Watch: Beijing Faces 'Smogpocalypse' as World Leaders Kick Off Climate Summit
The Chinese government issued the "orange level" alert, the highest smog warning so far this year.
Watch: Pope Francis Visits Uganda
Huge, celebratory crowds greeted the pontiff Saturday in Uganda.
Watch: Family of Terror Suspect Insists He Didn't Help Paris Attackers
The family of wanted Belgian terror suspect Mohamed Abrini insisted he was innocent of helping the Paris attackers in an...
Watch: Pope Francis Greeted by Conga Lines, Hip Shaking in Nairobi
Thousands of excited Catholic school kids filled Kasarani Stadium in Kenya's capital city.
Watch: Debris from US Rocket Discovered Off British Coast
A large chunk of an American space rocket, likely from the ill-fated SpaceX Falcon 9, has been found off the coast of...
Watch: Pope Francis Holds Open Air Mass in Nairobi
The pope mentioned the threat of terrorism in his remarks.
Watch: Aboard Pope Francis' First Flight to Africa
Amid safety concerns, Pope Francis traveled to Kenya for the first leg of his African tour.
Watch: Belgium Warns of Attack With 'Heavy Weapons' and 'Suicide Bombs'
Belgium's foreign minister tells ABC News that the country's primary concern right now is to find about 10 individuals whom...
Watch: Deck the Windows Along New York's Fifth Avenue
ABC News' Charli James shows us some of New York's most iconic holiday windows.
Full Episode: Nightline 11/30/15: Donald Trump Has Closed Meeting With African-American Pastors
Meet a Former Porn Star, Turned-Fantasy Sports Radio Host; Adele Breaks Records with Historic Album Debut of '25'
Full Episode: WN 11/30/15: Cyber Monday Deals
President Obama's trip to Paris; Colorado planned parenthood suspect in court.
Full Episode: GMA 11/30/15: University of Chicago Closes Campus After Online Threat
Paris Climate Talks Move Forward Despite Recent Terror Attacks; Shoppers Head Online for Cyber Monday.
Full Episode: 20/20 11/27/15: Mystery in the Maternity Room
Mom Reunites With Daughter She Thought Was Dead For Nearly 50 Years; Mom Insists She Never Abandoned Her Baby at St. Louis...
Full Episode: This Week 11/15/15: Donald Trump on 2016 Presidential Race
Guests: Donald Trump, Ben Carson, Martin O'Malley, and David Alexrod
Photos: Eerie Abandoned Villages
Residents fled their homes following the eruption of Mount Sinabung.
Photos: This Week in Pictures: Top Photos from Around the Globe
The latest news photos from around the globe.