Meanwhile Britain's main scientific academy, the Royal Society, and the Academy of Sciences for the Developing World, which has members from around 90 countries, are planning further discussions that will culminate at a meeting to be held this November.

ECONOMIST: Geoengineering

Today, 75 percent of HIV infections among 15- to 24-year-olds in sub-Saharan Africa are young women, and up to one-half of girls in developing countries become mothers before the age of 18, largely due to lack of access to modern family planning options.

FORBES: Philanthropy that Delivers for Women