Making waves

More than 8,000 conservationists and policy makers are in Barcelona, Spain, for the IUCN World Conservation Congress. Held once every four years, the gathering is viewed as a landmark event where future conservation strategies are developed. In his daily diary, environment correspondent Richard Black reports on the topics beings discussed in the conference halls, and visits some of the fringe events. THURSDAY 09 OCTOBER - IRON BOUND The topic of "ocean seeding" has been making waves among delegates Could "polluting" the marine environment restrain rising temperatures and rising carbon dioxide concentrations in the atmosphere? According to Margaret Leinen, chief scientist of the company Climos, it could; and the magic pollutant is iron filings. Placed in the oceans, the theory goes that they will stimulate the growth of... [read full story]