BBC HomeExplore the BBC


Accessibility help
Text only
BBC Homepage
BBC Radio
BBC Radio 4 - 92 to 94 FM and 198 Long WaveListen to Digital Radio, Digital TV and OnlineListen on Digital Radio, Digital TV and Online

PROGRAMME FINDER:
Programmes
Podcasts
Schedule
Presenters
PROGRAMME GENRES:
News
Drama
Comedy
Science
Religion|Ethics
History
Factual
Messageboards
Radio 4 Tickets
Radio 4 Help

Contact Us

Like this page?
Send it to a friend!

 

Science
FRONTIERS
MISSED A PROGRAMME?
Go to the Listen Again page
PROGRAMME INFO
Wednesday 21:00-21:30
Frontiers explores new ideas in science, meeting the researchers who see the world through fresh eyes and challenge existing theories - as well as hearing from their critics. Many such developments create new ethical and moral questions and Frontiers is not afraid to consider these.
Contact Frontiers
LISTEN AGAINListen 30 min
Listen to 20 December
PROGRAMME DETAILS
Wednesday 20 December 2006
white clouds against light blue sky

Geo-engineering

The recent Stern Review painted a disturbing picture of the Earth in the grip of climate change. Rising sea levels could displace 200 million people and up to 40% of species may face extinction.

A number of prominent scientists and economists fear that we won’t be able to cut carbon emissions quickly enough to avert catastrophe. Now some are considering a radical alternative - re-engineering our planet.

In this week’s Frontiers, Peter Evans meets the engineers and scientists devising schemes to rebalance the Earth’s climate. Collectively termed ‘geo-engineering’, these ideas range from sending a giant sunshade into space, to making seaclouds shinier.

So would these projects work, and should we consider messing with the world’s climate even further? To answer these questions, Peter is joined in the studio by:
  • Ken Caldeira, a climate specialist at the Department of Global Ecology, in the Carnegie Institution in the US
  • Greg Benford, a science-fiction writer and physicist at the University of California, Irvine
Listen Live
Audio Help
DON'T MISS
Leading Edge
PREVIOUS PROGRAMMES
Current programmes
Archived programmes

Back to Latest Programme
Science, Nature & Environment Programmes
Current Programmes
Archived Programmes

News & Current Affairs | Arts & Drama | Comedy & Quizzes | Science | Religion & Ethics | History | Factual

Back to top


About the BBC | Help | Terms of Use | Privacy & Cookies Policy