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.
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.
Brisbane's G20 Leaders' Summit proved a Twitter talk fest, attracting 1.02 million tweets since October 23.
Nestled in President Barack Obama's plan to overhaul aspects of the US immigration system are tweaks to rules for high-skilled workers long frustrated with hurdles to getting work or residency approval.
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.
President Barack Obama says the United States needs to bring its schools into the 21st century when it comes to technology.
A Sino-US breakthrough on reducing carbon emissions proves a global deal on climate change is achievable, US President Barack Obama said Saturday, as campaigners hailed new momentum in long-stalled talks.
US President Barack Obama will pledge $3 billion to a UN fund aimed at mitigating the effects of climate change in the world's poorest countries, a US official said Friday.
China's top climate change negotiator on Friday defended the vagueness of Beijing's target to peak carbon emissions "around 2030", suggesting developed nations may need to make more ambitious cuts.
A groundbreaking agreement struck by the United States and China is putting the world's two worst polluters on a faster track to curbing the heat-trapping gases blamed for global warming. With the clock ticking on a worldwide ...