Up Next
Back to Show
Retro Report on PBS
Engineering Earth’s Climate?
Season 1
Episode 5
Scientists are worried that soon, simply reducing carbon emissions won’t be enough to even slow global warming. A U.N. panel has said the world will likely need to “geo-engineer” the climate. That’s an idea that dates to the Cold War, when a different kind of global challenge gave rise to fears of a “nuclear winter.”
Support Provided By
4:37
New Yorker magazine humorist Andy Borowitz takes a look at a thriving industry: bullying.
13:22
A decades-old battle is re-emerging over how sex is presented in the classroom.
10:27
Flawed research predicting remorseless teen killers led to life sentences.
11:55
H.I.V. rates have fallen in many places, but the AIDS crisis persists in parts of the U.S.
10:06
After Napster, many consumers got used to media on demand. There was no turning back.
9:54
Today's immigration policies echo an anti-immigration movement 25 years ago in California.
11:18
Her complaint sounded frivolous. But the facts told another story.
7:46
The rise of special operations units today can be traced to two past operations.
3:58
Andy Borowitz examines how Anita Bryant inadvertently energized the gay rights movement.
18:31
A new understanding of risk emerged from the study of a NASA disaster.