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UN climate chief Christiana Figueres, shown here in 2010, told governments to prepare for a gap on the expiry of pledges under the Kyoto Protocol, which has formed the foundation of the world's efforts to cut carbon emissions. Commitments by most developed countries to cut emissions are likely to expire at the end of next year without a new round of legally binding pledges, she warned.

Purdue University researchers have developed a set of propagation and production protocols that will help Indiana greenhouse growers bring a tropical plant into flower for spring sales.