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US President Barack Obama said Saturday that a transition to cleaner energy will help create more American jobs as he promoted his new initiative designed to reduce US energy imports by a third.

A San Francisco State University biologist has released the initial results of her nationwide citizen science project to count bee populations and has found low numbers of bees in urban areas across America, adding weight to the theory that habitat loss is one of the primary reasons for sharp declines in the population of bees and other important pollinators.

A new study has found that an emerging tool for combating climate change may cause less harm to some soil animals than initial studies suggested.

essays in this book reflect pioneering efforts to study the global movement of ideas and institutions. They deal with topics of significant contemporary importance: initiatives to address the AIDS epidemic in East Africa; to protect the peoples and ecosystems of the Amazon; to advance the "truth and reconciliation" process in South Africa and in other areas of great conflict; to promote "civil society" in Eastern Europe and Central Asia; to advocate for environmental protection in the United States, Great Britain, Germany, and Japan; and to spread Rotary Clubs and encourage "social entrepreneurship" throughout the world. These essays highlight a wide range of research, paying close attention to the realities of particular situations and to current thinking about general processes.

Renren, China's most popular social network, filed for an initial public offering in the United States on Friday hoping to raise as much as $583 million.

Bloomberg's office says the new initiatives include plans to build solar power plants on capped landfills and launch a loan program to help property owners pay for green energy efficiency upgrades.

South Korea's largest business group Samsung signed an initial deal Wednesday to invest $7.04 billion in a state project to build a green energy complex on reclaimed wetland.