Obama bars oil, gas drilling in Alaska haven

President Barack Obama declared Alaska's ecologically rich Bristol Bay off-limits for oil and gas exploration on Tuesday, saying the move was necessary to safeguard the region's fishing and tourism industries.

Tech summit addresses industry's lack of diversity

Civil rights leader Jesse Jackson spent most of this year pressuring the technology industry into facing up to the glaring scarcity of women, blacks and Latinos at companies renowned as great places to work.

White House focuses on computer science in schools

Smartphones and laptops have become essential tools for today's teenagers. But learning how these devices work has often taken a backseat to other priorities in U.S. schools.

US proposes stricter ozone limits

The US Environmental Protection Agency announced plans Wednesday to strengthen emission regulations for ozone, a smog-causing pollutant blamed for respiratory ailments affecting millions of Americans.

US to propose stricter smog standard

Coming full circle on a campaign promise, the Obama administration will propose Wednesday to reduce the amount of smog-forming pollution allowed in the air, which has been linked to asthma, lung damage and other health problems.

G20 talk fest echoed on Twitter

Brisbane's G20 Leaders' Summit proved a Twitter talk fest, attracting 1.02 million tweets since October 23.

Green Climate Fund pledges reach $9.3 bn

Nations meeting in Berlin Thursday pledged $9.3 billion (7.4 bn euros) for a climate fund to help poor countries cut emissions and prepare for global warming, just shy of a $10bn target.

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