While U.S. officials vowed to learn from Europe's mistakes, the bill sponsored by Reps. Henry Waxman (D., Calif.) and Edward Markey (D., Mass.) has many of the same flaws and adds massive "offsets" that blow away the "cap" in "cap-and-trade." Offsets allow polluters to, for example, pay to preserve an acre of forest so they can continue burning coal above the cap. The concept's problems are legion and well-documented.