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

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.

Backgrounder: Economists say Iran’s mismanaged energy sector and falling oil prices could have consequences for its economy.

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

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