energy trends to 2030 eia in preparing projections for the aeo2007 evalu ated a wide range of and issues that could have major implications us markets between today this overview focuses on one case reference which is presented compared with aeo2006 see table 1 read ers are encouraged review full alterna tive cases included other sections as previous editions annual outlook aeo assumes current poli cies affecting sector remain unchanged throughout projection period some possible pol icy changes notably adoption policies limit or reduce greenhouse gas emissions change significantly supply demand affected by many factors difficult predict such en ergy prices economic growth advances tech nologies weather patterns future public policy decisions it clear however changing gradually response readily observable higher been experienced since 2000 greater influence developing countries world
