The world's largest plant to turn natural gas into cleaner-burning fuels and lubricants took a major step closer to production today when gas began flowing from a giant offshore field. 

Pearl GTL will process around 3 billion barrels of oil equivalent over its lifetime from the world's largest single gas field, the North Field in the Arabian Gulf. The field stretches from Qatar's coast and contains more than 900 trillion cubic feet of gas, equivalent to 150 billion barrels of oil, or over 10% of worldwide gas resources.

Tree islands, patches of high, dry ground a meter high that dot the marshes of the Florida Everglades, are elevated enough to allow trees to grow and provide a nesting site for alligators and a refuge for birds, panthers, and other wildlife.

And those critters may have anthropogenic garbage left by early man to thank for it.   Garbage mounds left by prehistoric humans might have driven the formation of many of those  Everglades' tree islands, distinctive havens of exceptional ecological richness in the sprawling marsh that are today threatened by human development.