Exclusive: One Woman’s Story of Escape from Boko Haram
02:36
Ann Curry talks to Bishop Cupich, upcoming Archbishop of Chicago
17:07
Children from Death Train Reunited
02:21
Dep. Foreign Minister: Syria Warned of ISIS Threat for Three Years
04:54
Putin Wants ‘New Empire,’ Ukraine’s Prime Minister Tells Ann Curry
11:26
No Ceilings: Melinda Gates, Hillary Clinton team up on women’s health, education
04:47
Facing sobering predictions about Ebola epidemic, Melinda Gates offers hope
04:18
‘Unimaginable’ suffering: Fight against ISIS may worsen refugee crisis
03:41
Iran's president Hassan Rouhani speaks to NBC's Ann Curry in an exclusive interview
52:37
Iran's Rouhani: U.S. Coalition Against ISIS is 'Ridiculous'
01:17
Living on a Dollar a Day: Reality of Extreme Poverty Revealed
03:17
Love and Loss: A Family's Struggle with Childhood Cancer
03:23
Pair Rescues Dozens of Children From Deadly Superstition
02:49
Surviving the Valley of Death: Hope for Ethiopia’s Children
15:40
On Thin Ice: Inuit way of life vanishing in Arctic
25:42
Archbishop Desmond Tutu: Oppression of gays is 'new Apartheid'
02:47
'Crime of our times': 51 million flee conflict and persecution
04:58
Photographer documents every major war over 40 years
04:11
From Bullets to Ballet: Conflict Photographer Has Epiphany
03:36
Maya Angelou: 'It takes courage to be kind'
08:50
Ann Curry Reports
Scientists warn ocean food supply may be impacted by rising CO2
Catch up with NBC News Clone on today's hot topic: Scientists Warn Ocean Food Supply May Be Impacted By Rising Co2 218453571898 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
03:24
Copied
Marine biologists are searching for evidence of what our oceans will look like if carbon dioxide levels continue to increase. Thirty percent of the carbon dioxide, or CO2, released into the atmosphere is absorbed by the ocean, leading to a process called acidification. Shellfish and coral reefs are particularly impacted, according to Jason Hall-Spencer of Plymouth University. "We've never put this much carbon dioxide into the ocean before," he said. "It's never happened before in Earth's history. Not this quickly." NBC's Ann Curry reports.April 6, 2014
