From Dai James
Fred Pearce refers to sucking carbon dioxide out of the air as a means of ameliorating climate change (20 February, p 30). While the climatic effects of CO2 may be highly damaging in the next few hundred years, in the longer term it could be an extraordinary gift: a way to partially control climate. We might even put an end to the sequence of ice ages that have dominated Earth’s history. If possible, carbon sequestration should be done in a manner that enables our descendants to release CO2 back into the atmosphere, should a period of cooling make this desirable.
Rhydyfelin, Rhondda Cynon Taf, UK
