After Russia cut off gas for Ukraine, Russia says it won't negotiate with Ukraine until the country pays off its gas debt. Ukraine’s parliament is considering legislation that would allow its gas transit and storage facilities to be leased as joint ventures with the US or EU member countries.
Previous agreements to restrict greenhouse-gas emissions, including Kyoto, have largely failed. To curb global warming, negotiators are hoping countries will design and enforce their own cuts.
Many states want electric car manufacturer Tesla Motors to build a 'gigafactory' in their states. But in more conservative Texas, Governor Rick Perry is working hard to market itself toward Tesla Motors, writes Jesse Morris.
Royal Dutch Shell says it stopped its shale projects in Ukraine because of air strikes, but there may be more economic reasons. The oil supermajor was disappointed with the economic viability of what it once thought was a large shale deposit, Alexeev writes, and was looking for a way out.
Sunni jihadists battled with Iraqi government forces for control of the country's largest refinery. Loss of the Baiji refinery wouldn't directly impact global oil markets, but it would exacerbate the Iraq crisis and further destabilize a fragile regional situation.
Global coal consumption rose 3 percent in 2013, despite efforts in some places to scale back use of the carbon-heavy fuel. Why is it hard to stop depending on coal for energy?
Both the US and China have been quickly working toward reducing the cost of solar energy. The US's solar energy quest has remained in the private sector, while China has taken a different approach.
The notion that the world will never run out of oil is misleading, writes Kurt Cobb. The real issue is about the rate of oil production.
The Iraq crisis threatens to disrupt the country's oil output, a scenario for which the world has to prepare, says US President Barack Obama. Saudi Arabia is starting to feel pressure to help with the global oil supply if Iraq's oil can't be accessed.
The World Cup 2014 could be the most-watched and most expensive tournament in soccer history. But, it could also be the most-energy consuming World Cup in history.
As Iraq continues to deal with the militant Sunni group ISIS, Kurdistan's leaders are using the situation for leverage against Iraq's government. Kurdistan's oil prospects, however, remain in question.
Tesla Motors' Elon Musk has opened up his company's patents, hoping automakers will start putting more electric cars on the road. But electric cars have a long road ahead before going mainstream.