OPEC members Iran and Saudi Arabia, the top greenhouse gas emitters yet to submit national strategies for tackling climate change, say they will do so before a U.N. summit in December in a sign of widening participation even by oil producers. More than 150 governments of almost 200 nations worldwide have issued plans to curb greenhouse gas emissions ...

The removal of draconian sanctions on Iran will enable the country to quadruple its efforts to curb fossil fuel emissions, the countrys lead envoy at UN climate negotiations says. Iran is a major oil and gas producing country whose greenhouse emissions account for about 1.5% of the global total, according to World Resources Institute. The country ...