Geoengineering on BBC radio 4
John Nissen
Geoengineering on BBC radio 4, tomorrow Wednesday, 2100 GMT.
http://www.bbc.co.uk/programmes/b00r7lpx
John
John Nissen
Hi all,
http://www.bbc.co.uk/programmes/b00r7lpx
I listened to it, complete with Eli Kintisch (author of Hack the Planet)
on why geoengineering might be needed if worst scenarios [of climate
change] are not fixed by emissions reduction, John Shepherd on the Royal
Society study, Peter Kelemen on peridotite to absorb CO2, Ken Buesseler
on ocean iron fertilisation (OIF), Tim Lenton on why not to use OIF (one
reason being because it can't remove enough CO2), Geoffrey Landis on
sunshades in space, Roger Angel on trillions of reflectors in space,
Stephen Salter on cloud brightening (no need for an expensive lot of
space mirrors), Rosalind Peterson against stratospheric aerosols
(disastrous impact on water supplies, acid rain, photosynthesis),
Granger Morgan on ethics of SRM (only use when there is worldwide
consensus that without it a billion people would be put at risk), Mike
MacCracken on the Asilomar conference objectives (practical and ethical
ground rules), and finally Eli Kintisch again, saying that
geoengineering was a disturbing idea but we are so far down the road of
global warming, and the Earth system is more sensitive than we thought
five years ago, that we have to think seriously about geoengineering.
Mark Whitaker was the BBC presenter. During the programme he mentioned
Joan Ruddock as being against geoengineering research (because thinking
about plan B would divert attention from plan A), but John Holdren as
having said that, to combat global warming, everything had to be
considered, including geoengineering.
Cheers,
John
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