Starting Monday Southwest Airlines began serving their customers a new and darker coffee blend, in a new, more eco-friendly cup. Yesterday Southwest passengers enjoyed the first cups of the Arabica blend in the new 8 ounce earth-friendly paper cups.  The cups the airline chose is made from 12% post-consumer materials with 99% post-consumer recycled built-in coffee sleeves. Along with the new cup and the new coffee, Southwest is also...