Apple Certification Exam 9L0 509

The textbook emissions trading program can be called a "cap and trade" approach in which an aggregate cap on all sources is established and these sources are then allowed to trade 9L0 509 amongst themselves to determine which sources actually emit the total pollution load. An alternative approach with important differences is a baseline and credit program.
In a baseline and credit program a set of polluters that are not under an aggregate cap can create credits 9L0 402 by reducing their emissions below a baseline level of emissions. These credits can be purchased by polluters that do have a regulatory limit. Many of the criticisms of trading in general are targeted at baseline and credit programs rather than cap type programs.