250 million years ago, rising greenhouse-gas levels set off catastrophic changes.
The world's biggest suppliers will meet in Moscow on Nov. 18 to finalize plans for a cartel to control gas prices.
The war with Georgia may help make the breakaway province more independent.
European Union monitors began patrolling Georgian territory Wednesday.
As EU monitors arrive, new details contradict Russia's assertion that Georgia invaded South Ossetia first.
Moscow is offering Abkhazia a set of economic benefits, on top of a security guarantee.
Russia sent two long-range bombers to Venezuela Wednesday and will send warships and soldiers for joint exercises in November.