While some experts fault demand increases for record-high oil prices, others say production and market issues reflect price hikes are more complicated.

Political volatility among the world’s leading oil producers suggests deeper causes for recent price spikes.

A brief look at how the U.S. government plans to use taxpayer funds and other incentives to cleanse the balance sheets of banks and revitalize credit markets.

A short summary of each of the G-20 member’s objectives for the April summit in London.

Loss of forests is a major contributor to greenhouse-gas emissions. Plans to devise a policy tool for using trees for carbon dioxide sequestration are now under way.

Peru has avoided the development problems seen in other extraction-dependent economies, but experts say the country faces governance hurdles, especially on the environment.