After the impact

- Global fires would occur because of the extravagant amount of heat and fire forced into the atmosphere. 

 
- Dust and debris block the sunlight for about a year which would affect an incredible amount of processes on the Earth because the Sun is the major source of energy.   Plants, crops and fields would die out. The animals eating the plants would die.   The food chain would break down.  The temperatures would be much colder.   

- Co2 and sulfur released into the atmosphere prolonging acid rain, causing effects for about 50-100 years after impact.  The excess amount of Co2 would also cause the atmosphere to get warmer because the Co2 would get trapped.  This would have long term affects like melting of the ice caps and the rasing of the sea level.